Hi,
I’ve tried to reproduce the issue that you are seeing but alas, the filter appears to be working correctly on both the Windows and Macintosh systems in my office. Would it be possible for you to outline a set of steps that you followed that consistently causes the crash? Are you using the latest version of Red? Are you using the latest version of Knoll Light Factory? What type of system are you using this on? Are you using Red as standalone or the plug-in? If you are using it as a plug-in, then what host environment are you running?
Sorry for the barrage of questions but your answers to these will assist me in determining what is causing the crash.
Cheers,
Peter.