I had to make changes to a texture and saved the PNG that I used over the last version.
Since then, when I open the document, the object appears pinkish.
But not the “real pink” that it looks when the texture is missing. It looks as if there was a pink gradient above it with 30% opacity. I can see the texture beneath it.
In Material Preview everything looks fine, this problem occurs only in render mode.
I tried to reload the file several times, also used the “External Data”, no missing files left.
The problem appears both in Even and Cycles.
Thanks for your help!