The newest beta release of plex 1.15.1.780 media server for windows includes a debug release of the EasyAudioEncoder which requires the debug version of the vcruntime library and therefore will not run on a normal system. This causes videos with EAC or other formats that need to be re-encoded to just lock up on playback. The plex logs are as follows
Transcoder] [eac3_eae @ 021f5680] EAE timeout! EAE not running, or wrong folder? Could not read
Running the easy encoder directly causes error messages about missing MSVCP140D.DLL, VCRUNTIME140D.dll, ucrtbased.dll. The Ds denote debug versions are are therefore not including in the normal VC2015 redistributable.
release being called
AppData\Local\Plex Media Server\Codecs\EasyAudioEncoder-eae-69c1de6-23-windows-x86\EasyAudioEncoder