Thanks for the logs and feedback that the crashes occur on 1.28.2.6151-914ddd2b3 and 1.29.0.6244-819d3678c but not on 1.28.1.6104-788f82488
I have passed that information on to the development team
I would like to get more examples of dumps - so please make the registry change outlined on this support article Crash Logs: Plex Media Server | Plex Support and create the CrashDumps folder under C:\Users\Movies\AppData\Local\ and restart the server and then upgrade to the latest version of Plex Media Server and let me have the debug server logs and zip of the dmp file for the next crash on instigating a “Clean Bundles”
Thanks