Renoise crashed while i was trying to drag a group into another. It just stopped working and i lost my last 3 hours of tracking. 
Here is the log file if it helps:
============================================================
Version : Renoise V3.1.0 (Jan 9 2016)
Date : 2017-01-15
Time : 15:11:27
OS : Windows 10 (x86_64)
============================================================
CPU: Found 1 enabled unit(s) with 6 core(s) and 12 logical processor(s) per unit. 6 cores, 12 logical processors are enabled in total.
Application: Showing the splash window…
Application: Initializing the API…
IPP: Detected CPU type: 0x46
MIDI: Initializing DirectMusic…
MIDI: Failed to get the DirectMusicPerformance Interface (error: 80040154). Skipping DirectMusic devices…
Graphport: Initializing Freeimage…
System: Using ‘C:\Program Files\Renoise 3.1.0\Resources’ as resource base directory…
GraphPort: Initializing DirectX…
GraphPort: Initializing the Font Engine…
ReWire Slave: ReWire slave engine link (Local Machine) FAILED to install (RegError: 5)
ReWire Slave: ReWire engine link (Current User) is already installed and up to date…
ReWire Slave: ReWire Panel was initialized…
ReWire Slave: ReWire Slave mode failed to init (no master is running)…
ReWire Master: Successfully opened
Timer: Seems safe to use the ‘QueryPerformance’ counters…
Application: Start running…
Application: Loading the preferences…
Application: Init…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\com.afta8.Snapshot.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\com.renoise.IRCclient.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\com.renoise.Rubberband.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\dk.atte.DeleteUnusedSamples.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\ledger.scripts.ConvertInstrumentNumber.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\mphogacz.renoisetools.VelocityRandomizer.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Users\Ragnar\AppData\Roaming\Renoise\V3.1.0\Scripts\Tools\org.illformed.SlicesToPattern.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Program Files\Renoise 3.1.0\Resources\Scripts\Tools\com.renoise.ToolUpdater.xrnx’…
ScriptingTools: Initializing Scripting Tool: ‘C:\Program Files\Renoise 3.1.0\Resources\Scripts\Tools\com.renoise.UpdateChecker.xrnx’…
DspDevices: Registering native DSP effects…
Audio Plugins: Searching for VST plugins in ‘C:\VSTPlugins’
ASIO: Initializing
ASIO: Trying to open ‘QUAD-CAPTURE’
ASIO: LoadAsioDriver … OK
ASIO: ASIOInit … OK
ASIO: Using SampleRate 44100
ASIO: PostOutput is supported
ASIO: FillDriverInfo … OK
ASIO: InputBuffers: 6 available, 2 selected - Type 18
ASIO: OutputBuffers: 4 available, 2 selected - Type 0
ASIO: OutputLatency: 511, InputLatency: 403
ASIO: CreateBuffers … OK
ASIO: ASIOStart … OK
ASIO: Up and running
MIDI: Enumerating Windows MME MIDI devices…
MIDI: Adding MME in-device ‘IMPACT LX49’
MIDI: Adding MME in-device ‘MIDIIN2 (IMPACT LX49)’
MIDI: Adding MME in-device ‘QUAD-CAPTURE’
MIDI: Adding MME out-device ‘Microsoft GS Wavetable Synth’
MIDI: Adding MME out-device ‘IMPACT LX49’
MIDI: Adding MME out-device ‘QUAD-CAPTURE’
MIDI: Finished device enumeration
MIDI: Creating MIDI server…
MIDI: Opening MME Midi-In device ‘IMPACT LX49’
MIDI: Opening MME Midi-In device ‘QUAD-CAPTURE’
MIDI: Opening MME Midi-Out device ‘QUAD-CAPTURE’
Application: Loading the template document…
MIDI: Loading MIDI actions from file ‘C:\Program Files\Renoise 3.1.0\Resources\Scripts\GlobalMidiActions.lua’…
Osc: Loading OSC actions from file ‘C:\Program Files\Renoise 3.1.0\Resources\Scripts\GlobalOscActions.lua’…
Player: Constructing…
Player: Creating slave threads…
Player: 12 threads enabled. 12 CPUs are available.
Player: Start running…
GUI: Creating the Document GUI…
GUI: Successfully constructed
Application: Successfully loaded template document.
GraphPort: Initializing in WindowedMode
GraphPort: Successfully initialized
Application: Init OK
Application: Enter MainLoop…
MIDI: Rescanning MIDI devices…
MIDI: Closing MME Midi-In device ‘IMPACT LX49’
MIDI: Closing MME Midi-In device ‘QUAD-CAPTURE’
MIDI: Closing MME Midi-Out device ‘QUAD-CAPTURE’
MIDI: Enumerating Windows MME MIDI devices…
MIDI: Adding MME in-device ‘IMPACT LX49’
MIDI: Adding MME in-device ‘MIDIIN2 (IMPACT LX49)’
MIDI: Adding MME in-device ‘QUAD-CAPTURE’
MIDI: Adding MME out-device ‘Microsoft GS Wavetable Synth’
MIDI: Adding MME out-device ‘IMPACT LX49’
MIDI: Adding MME out-device ‘QUAD-CAPTURE’
MIDI: Finished device enumeration
MIDI: Opening MME Midi-In device ‘IMPACT LX49’
MIDI: Opening MME Midi-In device ‘QUAD-CAPTURE’
MIDI: Opening MME Midi-Out device ‘QUAD-CAPTURE’
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
VstPlugs: Trying to instantiate C:\VSTPlugins\Nova67P_v1_0_3b-windows\64bit\Nova67P-x64.dll
VstPlugs: Analyzing VST plugin ‘vladg/sound: Nova67P-x64’, Unique ID:1852798561, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Limiter6-x64’, Unique ID:1278637617, Version:2400
VstPlugs: Instantiate OK
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\FerricTDS_1.5.1\FerricTDS.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
Application: Saving ‘DNB.xrns’…
Application: ‘DNB.xrns’ was successfully saved.
VstPlugs: Trying to instantiate C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Limiter6-x64’, Unique ID:1278637617, Version:2400
VstPlugs: Instantiate OK
Application: Saving ‘DNB2.xrns’…
Application: ‘DNB2.xrns’ was successfully saved.
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
VstPlugs: Trying to instantiate C:\VSTPlugins\Nova67P_v1_0_3b-windows\64bit\Nova67P-x64.dll
VstPlugs: Analyzing VST plugin ‘vladg/sound: Nova67P-x64’, Unique ID:1852798561, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Limiter6-x64’, Unique ID:1278637617, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\Nova67P_v1_0_3b-windows\64bit\Nova67P-x64.dll
VstPlugs: Analyzing VST plugin ‘vladg/sound: Nova67P-x64’, Unique ID:1852798561, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Releasing C:\VSTPlugins\Nova67P_v1_0_3b-windows\64bit\Nova67P-x64.dll…
VstPlugs: C:\VSTPlugins\Nova67P_v1_0_3b-windows\64bit\Nova67P-x64.dll was released
VstPlugs: Releasing C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll…
VstPlugs: C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll was released
VstPlugs: Trying to instantiate C:\VSTPlugins\64b\OTT_x64.dll
VstPlugs: Analyzing VST plugin ‘Xfer Records: OTT_x64’, Unique ID:1483101268, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\64b\OTT_x64.dll
VstPlugs: Analyzing VST plugin ‘Xfer Records: OTT_x64’, Unique ID:1483101268, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\64b\OTT_x64.dll
VstPlugs: Analyzing VST plugin ‘Xfer Records: OTT_x64’, Unique ID:1483101268, Version:2400
VstPlugs: Instantiate OK
Application: Saving ‘DNB3.xrns’…
Application: ‘DNB3.xrns’ was successfully saved.
VstPlugs: Releasing C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll…
VstPlugs: C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll was released
VstPlugs: Trying to instantiate C:\VSTPlugins\64b\lkjb_Luftikus_x64.dll
VstPlugs: Analyzing VST plugin ‘lkjb: Luftikus_x64’, Unique ID:1818979403, Version:2400
VstPlugs: Instantiate OK
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
VstPlugs: Trying to instantiate C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Limiter6-x64’, Unique ID:1278637617, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\Limiter6-v102b\Limiter6-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Limiter6-x64’, Unique ID:1278637617, Version:2400
VstPlugs: Instantiate OK
VstPlugs: Trying to instantiate C:\VSTPlugins\Molot031b\2ch\Molot03-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Molot03-x64’, Unique ID:1296847922, Version:2400
VstPlugs: Instantiate OK
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
VstPlugs: Trying to instantiate C:\VSTPlugins\Molot031b\2ch\Molot03-x64.dll
VstPlugs: Analyzing VST plugin ‘Vladislav Goncharov: Molot03-x64’, Unique ID:1296847922, Version:2400
VstPlugs: Instantiate OK
File Im/Export: Timeout in ‘AbortSamplePrehearing’
RemoteAudioPlugin: Instantiating ‘C:\VSTPlugins\ZynAddSubFX-VDX_VST-2.4.1.496beta\ZynAddSubFX.dll’…
RemoteAudioPlugin: Creating pipes…
RemoteAudioPlugin: Launching plugin server process…
RemoteAudioPlugin: Connecting to the server…
RemoteAudioPlugin: Creating server thread…
RemoteAudioPlugin: Creating plugin instance in the server…
RemoteAudioPlugin: Initializing plugin instance…
RemoteAudioPlugin: Successfully initialized
This is where it just stopped and windows prompted that “Renoise has stopped working”. I can’t see any obvious problem, it didn’t even log that it crashed it seems.