You shouldn't need the merge versions plugin to have multiple versions of a movie. WITHOUT the plugin I get two "continue watching" entries for a movie that are at the same time stamp.
Jellyfin 10.10.7 (Docker)
Ubuntu 24.04.2 LTS w/HWE
Intel i3 12100
Intel Arc A380
OS drive - SK Hynix P41 1TB
Storage
4x WD Red Pro 6TB CMR in RAIDZ1