Found a similar question to this from 2015, but suggestions did not apply as our Kaltura instance is SaaS/hosted. A user reported 2 entries were deleted, but still show in their My Media. The KMC also shows the entries, but with a status of “deleted”. All actions on the entries from Mediaspace, KAF, or KMC report “Error: Entry ID not found” (admin or user).
These particular entries are based on a YouTube import (My Media - Add New - YouTube). One is the YouTube video, and the other is a video quiz created from that YouTube video.
I attempted to get some information from the API, and possibly update and remove the entry from there, and also get ID not found.