A fix to the issue observed and investigated from evidence provided by @DarkunderdoG has now been released in beta release Plex Media Server 1.18.6.2638
- The server could become unresponsive after navigating many preplay screens.
See Release Notice
@DarkunderdoG please replace the development build I sent you with this beta release. So Uninstall 1.18.7.2363-b9b035627 through Add or Remove Programs and then download and install beta release 1.18.6.2368-97add474d
