Merge equivalent Plex items or split an accidental grouping

The useful distinctions

• Merge combines selected items into one record.
• The first selected item becomes the merge target.
• Split Apart reveals supported merged item types.
• Individual episodes are not supported Split Apart targets.

Diagnose the grouping

Two poster tiles can represent duplicate discovery, two encodes of one release or genuinely different works. Decide which case you have before merging. Compare path, duration and cut identity rather than treating a shared title as conclusive. Keep a small manifest of the affected files so the intended relationship remains understandable after the interface changes from several tiles to one.

Choose the surviving record deliberately

The first selected item is the target for the documented merge operation, so inspect its metadata before confirming. A target with a wrong match should be corrected before becoming the parent of several valid files. Keep carefully edited metadata in mind when selecting the target. The synthetic example groups two encodes of the same fictional release and deliberately leaves an extended cut outside that group.

Verify both directions

After a merge, inspect the underlying file list to confirm that every intended version is present. After a split, inspect the identity of each resulting record instead of assuming the separation corrected matching as well. Do not rely on the split operation for individual episodes because the documented supported targets differ. Grouping is a catalogue operation, and the actual media should remain covered by ordinary backups throughout maintenance.

A focused way to proceed

1. Inspect the paths and identities of the candidate items.
2. For equivalent versions, multi-select the intended target first, then the other items.
3. Choose Merge and confirm only after checking the selection.
4. For an accidental supported grouping, open its details and choose Split Apart.
5. Inspect each resulting item and correct matching separately if needed.

Worked example · synthetic

Merge candidate A: Harbour Lantern theatrical 1080p
Merge candidate B: same theatrical cut 720p
Separate edition: Harbour Lantern extended cut
Target first: correctly matched theatrical record

Read the comparison

Grouping controls library records; it does not concatenate, transcode or edit the media files.

When to stop or ask for help

If a joined episode file needs independent episodes, prepare separate media files through an authorised editing workflow.