Server Version#: 1.55.0.3278-c6164b3c
Plex has bugs where changing folders associated with a library causes scheduled recordings to fail with the cryptic message “The destination library or location did not exist”. I say cryptic because PLEX shows a valid library selected for the DVR recording and the library folders are fine in the Record Options.
Inspecting the PLEX SQLite media_subscriptions table the target_library_section_id and target_section_location_id need to have valid matching entries in the section_location table to have a successful recording. The PLEX UI should flag recordings where failures will occur so users do not have to edit ALL of their recordings, or remove their DVR, to fix the broken section_location table that is caused by editing the library folders in your libraries.
In my case, I had two folders associated with one library. When I dropped back to one folder and moved my Library from D:\ to T:\ the correct Library is selected in the Record Options but the recording fails. With just one folder per library, the PLEX DVR Record Options shows the correct Library but hides the broken Library Folder which will cause the recording to fail.
A NULL target_section_location_id in the media_subscriptions table appears to be OK as long as the target_library_section_id is correct and has a correct file path in the section_locations table.
After you re-save your recordings, pop open the database you can download via the server “troubleshooting” to confirm that all of your media_subscriptions have valid target_library_section_id and target_section_location_id in the section_locations table.
Back to the short story, please flag recordings that do not have the correct library information in the DVR schedule so we know which recordings need to be re-saved.
For libraries that have one folder, it may make sense to auto-correct a stale library folder selection either on-the-fly when recording or permanently in the media_subscriptions table.
Functionally users need to know which recordings will fail vs. hoping all of their recordings have a valid storage location.
The previous postings on this have all been closed with either you need to re-save all of your DVR scheduled recordings or you need to remove your DVR and start over. Inspecting the PLEX web client, any stale targetSectionLocationID seems to be preserved on save unless you select a new library… so simply re-saving is not sufficient.
