Crash when unloading VST OvertoneDSP AF2-10

Renoise (linux) crashes when I remove this plugin from a song if the plugin window was opened at least once. This is with plugin sandbox disabled:

Renoise LOG> VstPlugs: Trying to instantiate /home/user/.vst/OvertoneDSP/AF2-10/AF210.so
Renoise LOG> VstPlugs: Analyzing VST plugin 'OverToneDSP: AF210', Unique ID:1634092082, Version:2400
Renoise LOG> VstPlugs: Instantiate OK
ACMT-UI: UI dpi 100
ACMT-UI: UI scale 100.0 %
Renoise LOG> VstWindow: Creating a new X11Window...
Renoise LOG> VstWindow: Setting X11Window properties...
Renoise LOG> VstWindow: Give the plug access to the X11Window...
** INFO: AF210 - System GL Version is: 4.6.0 NVIDIA 396.54
** INFO: AF210 - System GL Major Version is: 4
** INFO: AF210 - System GL Minor Version is: 6
** INFO: AF210 - Requesting system GLSL Version
** INFO: AF210 - System GLSL Version is: 4.60 NVIDIA : #version 460
Renoise LOG> VstWindow: Query the X11Window child...
Renoise LOG> VstWindow: Child window has no _EventProc property set...
Renoise LOG> VstWindow: Setting new Windowsize 896, 634
Renoise LOG> VstWindow: Mapping the window...
Renoise LOG> VstWindow: Setting new Windowsize 896, 634
Renoise LOG> VstWindow: Closing the Editor...
Renoise LOG> VstWindow: Editor was closed
Renoise LOG> VstPlugs: Releasing /home/me/.vst/OvertoneDSP/AF2-10/AF210.so (finalizing the plugin)...
Renoise LOG> VstPlugs: Releasing /home/me/.vst/OvertoneDSP/AF2-10/AF210.so (unloading the DLL)...
ACMT-UI Engine: XClose
Renoise LOG> VstPlugs: /home/me/.vst/OvertoneDSP/AF2-10/AF210.so was successfully released
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7ff7f7196a58]
Renoise LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7ff7f70cabe6]
Renoise LOG> CrashLog: renoise3() [0xec8031]
Renoise LOG> CrashLog: renoise3() [0xc0bbab]
Renoise LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7ff7f74d63c0]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7ff7f7194d9f]
Renoise LOG> CrashLog: [(nil)]
Renoise LOG> Application: Caught an unhandled fatal exception (Thread: ???)!
Renoise LOG> Application: Saving a backup...
Renoise LOG> Application: Terminating...
Renoise LOG> Jack: Deactivate...
Renoise LOG> Jack: Releasing port 'renoise:input_01_left'
Renoise LOG> Jack: Releasing port 'renoise:input_01_right'
Renoise LOG> Jack: Releasing port 'renoise:input_02_left'
Renoise LOG> Jack: Releasing port 'renoise:input_02_right'
Renoise LOG> Jack: Releasing port 'renoise:input_03_left'
Renoise LOG> Jack: Releasing port 'renoise:input_03_right'
Renoise LOG> Jack: Releasing port 'renoise:input_04_left'
Renoise LOG> Jack: Releasing port 'renoise:input_04_right'
Renoise LOG> Jack: Releasing port 'renoise:output_01_left'
Renoise LOG> Jack: Releasing port 'renoise:output_01_right'
Renoise LOG> Jack: Close...
Renoise LOG> Jack: Jack was released
Renoise LOG> MIDI: Shut down: Closing all acquired MIDI devices...
Renoise LOG> MIDI: Shutting down MIDI server...
Renoise LOG> MIDI-IO: Closing MIDI in device 'Renoise MIDI In Port A'...
Renoise LOG> MIDI-IO: Closing MIDI in device 'Renoise MIDI In Port B'...
Renoise LOG> MIDI-IO: Closing MIDI in device 'MPK mini MIDI 1'...
Renoise LOG> MIDI-IO: Closing MIDI in device 'Scarlett 2i4 USB MIDI 1'...
Renoise LOG> MIDI-IO: Closing MIDI out device 'MPK mini MIDI 1'...
Renoise LOG> MIDI-IO: Closing MIDI out device 'Scarlett 2i4 USB MIDI 1'...
Renoise LOG> MIDI-IO: Shutting down the MIDI sequencers...
[1] 22848 killed renoise3

With plugin sandbox enabled renoise does not crash, but:

Renoise LOG> RemoteAudioPlugin: Instantiating '/home/me/.vst/OvertoneDSP/AF2-10/AF210.so'...
Renoise LOG> RemoteAudioPlugin: Creating pipes...
Renoise LOG> RemoteAudioPlugin: Launching plugin server process...
Renoise LOG> System: Executing '/usr/share/renoise-3.1.1/AudioPluginServer_x86_64 12732 /tmp/Renoise-0-12732/PipeMemory-24 RNS_PipeTrigger-12732-24 RNS_PipeWait-12732-24 /tmp/Renoise-0-12732/PipeMemory-25 RNS_PipeTrigger-12732-25 RNS_PipeWait-12732-25'
Renoise LOG> RemoteAudioPlugin: Connecting to the server...
Renoise Plugin Server LOG> IPP: Detected CPU type: 0x46
Renoise Plugin Server LOG> Graphport: Initializing Freeimage...
Renoise Plugin Server LOG> Graphport: Initialising XThreads...
Renoise Plugin Server LOG> Graphport: Opening XDisplay ':0' (configured via 'DISPLAY' env)...
Renoise Plugin Server LOG> Graphport: XDisplay was successfully opened
Renoise Plugin Server LOG> GraphPort: Loading cursor images (libXcursor is present)...
Renoise Plugin Server LOG> System: Application path retrieved from /proc/self/exe: '/usr/share/renoise-3.1.1/AudioPluginServer_x86_64'
Renoise Plugin Server LOG> System: Running from directory '/usr/share/renoise-3.1.1/'...
Renoise Plugin Server LOG> System: Using '/usr/share/renoise-3.1.1/' as local resource directory...
Renoise Plugin Server LOG> GraphPort: Initializing the Font Engine...
Renoise Plugin Server LOG> GraphPort: Enumerating system fonts...
Renoise Plugin Server LOG> Graphport: Initializing Keyboard mappings...
Renoise Plugin Server LOG> Graphport: Initializing XAtoms...
Renoise Plugin Server LOG> Application: Initializing Icon Bitmaps...
Renoise Plugin Server LOG> Application: Skipped high resolution icon image(s) (too less space for selection - cur: 159808, new: 524304, max: 262144)
Reading the plugin caches...
Renoise Plugin Server LOG> Server: Connected
Renoise LOG> RemoteAudioPlugin: Creating server thread...
Renoise LOG> RemoteAudioPlugin: Creating plugin instance in the server...
Renoise Plugin Server LOG> VstPlugs: Trying to instantiate /home/me/.vst/OvertoneDSP/AF2-10/AF210.so
Renoise Plugin Server LOG> VstPlugs: Analyzing VST plugin 'OverToneDSP: AF210', Unique ID:1634092082, Version:2400
Renoise Plugin Server LOG> VstPlugs: Instantiate OK
Renoise LOG> RemoteAudioPlugin: Initializing plugin instance...
Renoise LOG> RemoteAudioPlugin: Successfully initialized
ACMT-UI: UI dpi 100
ACMT-UI: UI scale 100.0 %
Renoise Plugin Server LOG> VstWindow: Creating a new X11Window...
Renoise Plugin Server LOG> VstWindow: Setting X11Window properties...
Renoise Plugin Server LOG> System: Application path retrieved from /proc/self/exe: '/usr/share/renoise-3.1.1/AudioPluginServer_x86_64'
Renoise Plugin Server LOG> VstWindow: Give the plug access to the X11Window...
** INFO: AF210 - System GL Version is: 4.6.0 NVIDIA 396.54
** INFO: AF210 - System GL Major Version is: 4
** INFO: AF210 - System GL Minor Version is: 6
** INFO: AF210 - Requesting system GLSL Version
** INFO: AF210 - System GLSL Version is: 4.60 NVIDIA : #version 460
Renoise Plugin Server LOG> VstWindow: Query the X11Window child...
Renoise Plugin Server LOG> VstWindow: Child window has no _EventProc property set...
Renoise Plugin Server LOG> VstWindow: Setting new Windowsize 896, 634
Renoise Plugin Server LOG> VstWindow: Mapping the window...
Renoise Plugin Server LOG> VstWindow: Setting new Windowsize 896, 634
Renoise Plugin Server LOG> VstWindow: Closing the Editor...
Renoise Plugin Server LOG> VstWindow: Editor was closed
Renoise LOG> RemoteAudioPlugin: Closing 'AF210'...
Renoise Plugin Server LOG> VstPlugs: Releasing /home/me/.vst/OvertoneDSP/AF2-10/AF210.so (finalizing the plugin)...
Renoise Plugin Server LOG> VstPlugs: Releasing /home/me/.vst/OvertoneDSP/AF2-10/AF210.so (unloading the DLL)...
ACMT-UI Engine: XClose
Renoise Plugin Server LOG> VstPlugs: /home/me/.vst/OvertoneDSP/AF2-10/AF210.so was successfully released
Renoise LOG> RemoteAudioPlugin: Stopping server thread...
Renoise LOG> RemoteAudioPlugin: Shutting down server process...
Renoise Plugin Server LOG> Server: Disconnected
Renoise LOG> RemoteAudioPlugin: Disconnecting pipes...
Renoise Plugin Server LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7f09af02c3c0]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7f09aecead9f]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7f09aececa58]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7f09aec20be6]
Renoise Plugin Server LOG> CrashLog: /usr/share/renoise-3.1.1/AudioPluginServer_x86_64() [0x51c5b7]
Renoise Plugin Server LOG> CrashLog: /usr/share/renoise-3.1.1/AudioPluginServer_x86_64() [0x48df8c]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libpthread.so.0(+0x123c0) [0x7f09af02c3c0]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libgcc_s.so.1(+0xfd9f) [0x7f09aecead9f]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libgcc_s.so.1(_Unwind_Backtrace+0x68) [0x7f09aececa58]
Renoise Plugin Server LOG> CrashLog: /usr/lib/libc.so.6(backtrace+0x66) [0x7f09aec20be6]
Renoise Plugin Server LOG> CrashLog: /usr/share/renoise-3.1.1/AudioPluginServer_x86_64() [0x51c5b7]
Renoise Plugin Server LOG> Closing log file...
Renoise Plugin Server LOG> CrashLog: /usr/share/renoise-3.1.1/AudioPluginServer_x86_64() [0x48df8c]

Checked in Reaper (native linux) and this does not happen (no crash reports on the terminal). Should I contact the developer too?

My machine & OS:

System: Host: arch Kernel: 4.18.8-1-ck x86_64 bits: 64 Desktop: bspwm 0.9.5 Distro: Arch Linux
Machine: Type: Desktop Mobo: ASUSTeK model: Z170 PRO GAMING/AURA v: Rev X.0x serial: <root required>
           UEFI [Legacy]: American Megatrends v: 2103 date: 10/27/2016
CPU: Topology: Quad Core model: Intel Core i7-6700K bits: 64 type: MT MCP L2 cache: 8192 KiB
           Speed: 4000 MHz min/max: 800/4200 MHz Core speeds (MHz): 1: 4000 2: 4000 3: 4000 4: 4000 5: 4000
           6: 4000 7: 4000 8: 4003
Graphics: Card-1: NVIDIA GP106 [GeForce GTX 1060 6GB] driver: nvidia v: 396.54
           Display: server: X.Org 1.20.1 driver: nvidia unloaded: modesetting resolution: 1920x1080~60Hz
           OpenGL: renderer: GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA 396.54
Audio: Card-1: Intel Sunrise Point-H HD Audio driver: snd_hda_intel
           Card-2: NVIDIA GP106 High Definition Audio driver: snd_hda_intel
           Card-3: AKAI Professional M.I. type: USB driver: snd-usb-audio
           Card-4: Focusrite-Novation Scarlett 2i4 type: USB driver: snd-usb-audio
           Sound Server: ALSA v: k4.18.8-1-ck
Network: Card-1: Intel Ethernet I219-V driver: e1000e
           IF: eth0 state: up speed: 100 Mbps duplex: full mac:
Drives: Local Storage: total: 931.52 GiB used: 596.39 GiB (64.0%)
           ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 500GB size: 465.76 GiB
           ID-2: /dev/sdb vendor: Seagate model: ST9500325AS size: 465.76 GiB
Partition: ID-1: / size: 340.11 GiB used: 251.08 GiB (73.8%) fs: ext4 dev: /dev/sda5
Sensors: System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: nvidia temp: 44 C
           Fan Speeds (RPM): cpu: 0 gpu: nvidia fan: 0%
Info: Processes: 204 Uptime: 31m Memory: 7.73 GiB used: 1.92 GiB (24.9%) Shell: zsh inxi: 3.0.20

I would contact them. I use this often and haven’t experienced any crashes.

Thanks, I’ve just sent them a mail.