if happening in all clients can you get the server logs after reproducing
https://support.plex.tv/hc/en-us/articles/201643703-Reporting-issues-with-Plex-Media-Server
if happening in all clients can you get the server logs after reproducing
https://support.plex.tv/hc/en-us/articles/201643703-Reporting-issues-with-Plex-Media-Server