[schimi2k]

Just a suggestion about this issue. Could you try texture maintenance cache utility on that particular show only with the C parameter (capital C), but only for this show as it will remove the cached thumbs and force recache them without the pain of deleting the cache folder and database.

i think i should take another look into this texture maintenance cache utility ...

Very easy to use but extremely powerfull. I always use it when having artworks issues, or when i change artworks as it is faster than doing the changes manually from inside kodi. And in case of artworks issues it can chirurgically fixes things instead of going "middle age" chirurgy way :-D

thats true... but i am a "mousekicker" instead of a "codetyper" .... thats why i avoid it for so long hehe
but i am testing it atm