Saved contribution misses some data

I edited credits and technical info of a film, then Saved for later. Five days later I opened the saved information, but there are no edited credits displayed.

"10 credits corrected" are mentioned at the Saved updates page. When I open the update, there is no mention of corrected credits at all. There is also some inconsistency with Alternate Titles edits number. 

It looks like some data was lost. What's the problem? (Update reference: 260504-144246-594200.)