Library image missing 50% of it

[Fate]

H I tried to reproduce it with these but so far it's all good. Weird.

I have Kitsu and Anidb usually selected, you can try switched to them and then repopulate the library.

The Git issue that thornbill linked indicates the problem is with the AniList plugin.  Which tonizombie stated they used.

Excactly that is why I suggesting switching to other Metadata providers.

I just wanted to add which metadata provider I use (for Anime).

And I was the one asking for the Metadata provider OP is using.

I realize I was stating the obvious for you but maybe not for OP.