Thanks @rvietor for all the infos. To be honest this following bit was obscure to me so very useful clarification:
Also:
…are you suggesting then to simply export a photo from dt/ansel and re-import it to see if everything’s alright? I mean these errors come up with all the photos that are simple straight import from my cameras.
I’ll have to check then if my exported photos are seen correctly elsewhere e.g. on other computers etc. I guess I will have to read back this thread here because it is this very issue that’s been discussed.
About my system, I will gladly wait for any further clarification on how to set up “X atom” (and what is it etc).
PS: thanks to @danny too for the reply