This could be related to the issue where if the actor doesn't have an entry in The Movie DB, when that actor is edited in any way, Emby tries to match it to a tMDb actor, and often links to the wrong one, and changes the actor's name in Emby to match whatever actor was found. This "breaks" the database link and the actor disappears from the movie entry. Then, you have to do a name search and hope you can dig the name out of the database (which is now a guessing game because you have no idea what the name was changed to!).
IMO, Emby should only link to a tMBd profile if an exact name match is found, and otherwise should either do nothing or prompt the user to pick the correct entry (ideally, the Emby admin could choose between these options with a global setting). I feel it should *never* change the name and thus break the linked entry. This is especially problematic when you have multiple different people with the same exact name, which is common with foreign movies that either dupe American actor names or use first-name-only names.
Edited by MrAudio, 28 August 2017 - 01:22 AM.