If the SMTC feature is enabled (Preferences -> General -> Windows 10 | 11) it can trigger a crash due to a change in the build that was incorrectly applied. If the crash reporter is triggered then an updated copy of the plug-in will be obtained which should then resolve the issue the next time WACUP is run. The handling to pull down fixed plug-ins post-release is ironically broken so disabling the SMTC option is the best workaround until a newer build with the fix is made available.
There can be random crashes on closing depending on how many active folder monitor entries have been setup.
Some installs appear to be having a conflict between in_url, in_mp4 & how the multi-threaded handling with playback is happening which can cause a crash to occur. This is still to be investigated.