@Iorek
madVR crash reports aren't very useful without the Debug Symbols present. Download the
XySubFilter Debug Symbols and place the PDB in the same directory as XySubFilter.dll . After you do that, please post your next madVR crash report here.
Currently, the only crash with Beta which we are aware of is
Issue #153, which only occurred at certain window sizes because of a bug in our combine bitmap function. Were you using windowed playback when these crashes occurred? Otherwise, any details you can provide about settings, subtitle format, fullscreen/windowed, play or pause, if it was soon after opening a new file, embedded or external subs, XySubFilter only installed or xy-VSFilter as well, filters shown under the PotPlayer filters context menu, and so on when crash occurred would be useful.