In verbose mode, I see this at the end of my next move out/rename/move back/rename attempt, this time I renamed it from aabbcc.m4v to Thor3.m4v and got this:
Nov 17, 2024 23:49:59.526 [139922328927032] INFO - Part rename detected [/mnt/usb-media/Video/Movies/Action - Adventure/aabbcc.m4v] was renamed [/mnt/usb-media/Video/Movies/Action - Adventure/Thor3.m4v]
Nov 17, 2024 23:49:59.526 [139922328927032] DEBUG - Updating media item 126333, size=4933673033, metadata_item_id=109019
Nov 17, 2024 23:49:59.526 [139922328927032] DEBUG - Updating part with ID=132650 [/mnt/usb-media/Video/Movies/Action - Adventure/aabbcc.m4v]
Nov 17, 2024 23:49:59.527 [139922328927032] DEBUG - Hint name didn't match ('Thor3' != 'Aabbcc') for DB media item 126333
Nov 17, 2024 23:49:59.530 [139922328927032] DEBUG - Added new metadata item (Thor3) with ID 109020
Nov 17, 2024 23:49:59.531 [139922320726840] DEBUG - [LibraryTimeline] Scanner activity on section 1: 1 added, 0 deleted
Nov 17, 2024 23:49:59.533 [139922328927032] DEBUG - Calculated media file path for path [upload://]: ["/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/8/c8d03aedeaef9b052f9af6779893e483d0a706b.bund
le/Uploads"]
Nov 17, 2024 23:49:59.533 [139922328927032] DEBUG - Calculated media file path for path [upload://]: ["/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/3/379511e82c099315023546083eb0212405412a8.bund
le/Uploads"]
Nov 17, 2024 23:49:59.533 [139922328927032] ERROR - Couldn't copy file "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/8/c8d03aedeaef9b052f9af6779893e483d0a706b.bundle/Uploads/posters/com.plexapp.
agents.imdb_bebed8d1c0e2cc2578ac6eed4474efbe7a66c6fc" to "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/3/379511e82c099315023546083eb0212405412a8.bundle/Uploads/posters/com.plexapp.agents.imdb_be
bed8d1c0e2cc2578ac6eed4474efbe7a66c6fc": File exists
Nov 17, 2024 23:49:59.534 [139922335255352] DEBUG - Looking for path match for [/mnt/usb-media/Video/Movies/Action - Adventure/Three Musketeers.m4v]
Nov 17, 2024 23:49:59.534 [139922337364792] DEBUG - Native Scanner: Executed Local Metadata stage in 0.00 sec.
Nov 17, 2024 23:49:59.535 [139922335255352] DEBUG - Scanner [Plex Movie]: found existing media id 168
Nov 17, 2024 23:49:59.535 [139922335255352] DEBUG - Native Scanner: Executed Agent Match stage in 0.00 sec.
Nov 17, 2024 23:49:59.536 [139922328927032] DEBUG - Migrating metadata settings from plex://movie/5f408ed2768fc700405cf8bf -> plex://movie/5d776b0547dd6e001f6da17c
Nov 17, 2024 23:49:59.544 [139922328927032] DEBUG - Doing expensive tags write for 'Thor3' because something changed.
Nov 17, 2024 23:49:59.548 [139922328927032] DEBUG - Doing expensive tags write for 'Thor3' because something changed.
Nov 17, 2024 23:49:59.549 [139922328927032] DEBUG - Doing expensive tags write for 'Thor3' because something changed.
Nov 17, 2024 23:49:59.554 [139922328927032] DEBUG - Doing expensive tags write for 'Thor3' because something changed.
Nov 17, 2024 23:49:59.555 [139922328927032] DEBUG - Doing expensive tags write for 'Thor3' because something changed.
Nov 17, 2024 23:49:59.556 [139922328927032] DEBUG - Deleting media item 126333.
Nov 17, 2024 23:49:59.556 [139922263952184] DEBUG - Request: [127.0.0.1:43206 (Loopback)] GET /:/metadata/notify/changeItemState?librarySectionID=1&metadataItemID=142&metadataType=1&state=-1&parentID=-1&rootID=-1&mediaState=analyzing (9
live) #18ebd GZIP Signed-in Token (jared744)
Nov 17, 2024 23:49:59.556 [139922538707768] DEBUG - Completed: [127.0.0.1:43206] 200 GET /:/metadata/notify/changeItemState?librarySectionID=1&metadataItemID=142&metadataType=1&state=-1&parentID=-1&rootID=-1&mediaState=analyzing (9 live
) #18ebd GZIP 10ms 195 bytes (pipelined: 1)
Nov 17, 2024 23:49:59.558 [139922328927032] DEBUG - Was connected to metadata item 109019, count is now 0.
Nov 17, 2024 23:49:59.562 [139922328927032] DEBUG - Destroying metadata item 109019 (MARVEL'S THOR: RAGNAROK - BLU-RAY)
Nov 17, 2024 23:49:59.564 [139922263952184] DEBUG - Request: [127.0.0.1:43206 (Loopback)] GET /:/metadata/notify/changeItemState?librarySectionID=1&metadataItemID=142&metadataType=1&state=-1&parentID=-1&rootID=-1&mediaState=idle (9 live
) #18edb GZIP Signed-in Token (jared744)
Nov 17, 2024 23:49:59.564 [139922538707768] DEBUG - Completed: [127.0.0.1:43206] 200 GET /:/metadata/notify/changeItemState?librarySectionID=1&metadataItemID=142&metadataType=1&state=-1&parentID=-1&rootID=-1&mediaState=idle (9 live) #18
edb GZIP 7ms 195 bytes (pipelined: 2)
Nov 17, 2024 23:49:59.573 [139922320726840] DEBUG - [LibraryTimeline] Scanner activity on section 1: 1 added, 1 deleted
Nov 17, 2024 23:49:59.582 [139922328927032] DEBUG - We are merging ID 109020 into ID 24410 ('Thor3'), moving over 1 media items.
Nov 17, 2024 23:49:59.582 [139922328927032] DEBUG - * Moving over media item 126334.
Nov 17, 2024 23:49:59.583 [139922328927032] DEBUG - Updating media item 126334, size=4933673033, metadata_item_id=24410
Nov 17, 2024 23:49:59.583 [139922328927032] DEBUG - Updating part with ID=132651 [/mnt/usb-media/Video/Movies/Action - Adventure/Thor3.m4v]
Nov 17, 2024 23:49:59.584 [139922328927032] DEBUG - Updating metadata item (save) (Thor 3: Ragnarok - Sakaar) with ID 24410
Nov 17, 2024 23:49:59.588 [139922328927032] DEBUG - Updating deletion state for metadata item 24410, is has a dead item count of 0.
Nov 17, 2024 23:49:59.588 [139922328927032] DEBUG - Now whacking metadata item 109020 since we gave away its media items
Nov 17, 2024 23:49:59.588 [139922549181240] DEBUG - Jobs: '/usr/lib/plexmediaserver/Plex Media Scanner' exit code for process 829222 is 0 (success)
Nov 17, 2024 23:49:59.588 [139922313640760] DEBUG - Killing job.
Nov 17, 2024 23:49:59.588 [139922313640760] DEBUG - Signalling job ID 829222 with 9
Nov 17, 2024 23:49:59.589 [139922313640760] DEBUG - LongRunningJobManager [CreditsDetector]: scheduling job for item 142, 0 pending.
Nov 17, 2024 23:49:59.589 [139922328927032] DEBUG - Destroying metadata item 109020 (Thor3)
Nov 17, 2024 23:49:59.589 [139922313640760] DEBUG - Media Analyzer: Background analysis completed in 0.4 seconds, removing 1 IDs
Next step, how do I find those assets that got merged and unmerge them?