Many covers are no longer displayed correctly

[Prisme]

What library type is in?  A plain Movies type or a mixed type?

A plain movies library. Apparently it affects covers with a certain aspect ratio.

For my part, I have thousands of rare films for which I had to find covers here and there or make them myself and many are affected.

But I'll give an example using images from TheMovieDb:

With the choice of the left cover, everything is fine:

   

   

But with the choice of the center cover, here is the result: