Cover pictures changing in "collection" with selection of album and artist

When i select “collection” and select “album” or “artist”,
i get an overview from my library with pictures.
Some of them have NO pictures, only icons/dummies for that- doesn’t matter in “album” or “artist”-.
But when i select that album, i do see the correct cover picture,
how can that be solved ?
A similar task is that i get in the overview different picture as the cover pictures,
but that is only for a part not for all albums/artists.
And that pictures also show up when you select a album and play it.
To see the cover picture i have to scroll down the page and select the album again(left click with the mouse),
then the picture appear on top of the screen.
Why is that and how i can switch that off ?
I maybe remember that the sense should that to see newer pictures of the artist as at the date where the record was made.But that is not true for all, on some album even the artists get younger…
Is there a way what i can do or what are they reasons for both issues ?

Hello ROON guys still no answer to that ?

To get some movement here i have here screenshots.
First is the “ARTIST overview” with missing covers.

Here are some examples what i get in Roon when i play that artists:

Froy Agre

Georgia Dagaki

The German Jazz Masters

Habib Koite

Hans Petter Bonden

Harry Stojka

And finally i see that in “ALBUM overview”

All thats just examples…

Maybe i got at least an answer that somebody fromm the Roon group READ that ???