SOLVED !!
Hi guys I can reproduce this bug every time on both my laptop and desktop both running Ubuntu 14.04 64 bit.
Simply open up a new instance of Redux as a plugin and on its own GUI press at least 1 key with the mouse, next try to open the folder icon which allows loading of presets , this results in an immediate freeze of Redux whic however does not bring down Bitwig and bitwig has no logs of any errors.
The serious part was when I noticed that all my Renoise instruments, tools etc had dissapeared completely with no trace on my system is the worrying part. So far this has only happened on my laptop.
So far on testing with Redux as a plugin within Renoise I have not been able to reproduce ( running the latest stable versions of Redux, Renoise and Bitwig.
heres the Redux log:
============================================================
Version : Renoise Redux V1.0.1 (Jun 24 2015)
Date : 2016-02-12
Time : 13:57:11
OS : Linux version 3.13.0-78-generic (buildd@lgw01-33) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #122-Ubuntu SMP Mon Feb 1 23:11:33 UTC 2016
============================================================
VST Shell: Running in ‘Bitwig Bitwig Studio 1306’
System: Application path retrieved from dladdr: ‘//home/mikobuntu/.vst/renoise_redux.so’
System: Running from directory ‘//home/mikobuntu/.vst/’…
System: Using ‘//home/mikobuntu/.vst/renoise_redux.res/’ as local resource directory…
Redux: Initializing the API…
IPP: Detected CPU type: 0x46
File-IO: Enabling MP3 decoding support using system mpg123 library…
Graphport: Initializing Freeimage…
Graphport: Opening XDisplay ‘:0’ (configured via ‘DISPLAY’ env)…
Graphport: XDisplay was successfully opened
GraphPort: Loading cursor images (libXcursor is present)…
GraphPort: Initializing the Font Engine…
GraphPort: Enumerating system fonts…
Graphport: Initializing Keyboard mappings…
Graphport: Initializing XAtoms…
Application: Initializing Icon Bitmaps…
Application: Skipped high resolution icon image(s) (too less space for selection - cur: 28720, new: 524304, max: 262144)
Content Libraries: Found library ‘com.renoise.elements’
Content Libraries: Found library ‘com.renoise.psudaform’
Content Libraries: Found library ‘com.renoise.djeroek’
Application: Loading the preferences…
Application: Init…
DspDevices: Registering native DSP effects…
Application: Init OK
Redux: Creating plugin shell instance…
MIDI: No global MIDI actions found…
Osc: No global OSC actions found…
Player: Constructing…
Player: Start running…
VST Shell: Unsupported host canDo: receiveVstSysexEvent
VST Shell: Unsupported host canDo: MPE
VST Shell: Open plugin editor…
System: Application path retrieved from /proc/self/exe: ‘/opt/bitwig-studio/bin/BitwigPluginHost64’
Application: Caught signal:1 - Terminating…
VST Shell: Closing plugin editor…
VST Shell: Open plugin editor…
If you require any more info, testing etc please let me know and thanks 
