@aztbr This may be of some use to you if you want to rollback to an earlier version.
https://forums.plex.tv/t/i-need-to-rollback-from-the-latest-plex-update/233585/2
For an earlier version of Plex for Windows, there is an archive on Github of past plexmediaserver download urls. Find the version you need and the link will initiate the download from the Plex Download Server.
https://github.com/axlecrusher/plex_download_urls?tab=readme-ov-file
