Moved PMS to New NAS- Transcode of Intros Unable to find Codec

[ChuckPa]

After you moved the PlexMediaServer shared folder to the new machine, and PMS reinstalled, Did you fix the permissions on all the files inside the shared folder?
(They can change from NAS to NAS because of how DSM 7 defines them)

Synology FAQ - Questions, Answers, and a few How-To's

FAQ 32: Repairing the PlexMediaServer shared folder While DSM 7 manages the permission of the PlexMediaServer shared folder itself, it does not manage the permission of files placed inside. This means any modification of permissions can cause PMS to fail. Frequent causes: Placing media in the shared folder – Which should NEVER be done. This is for PMS internal (metadata) use only. Special allowed case of adding plug-ins but must be installed correctly. One of the biggest confusion po…