Thanks, Ismael – editing the wp-config.php as you suggested brought the functions.php editor back into my backend. Excellent!

The original issue, however, remains unresolved: Still no avatar images appearing here with bbpress on my installation. Any idea that could help?

Thank you, Yigit. Your screens look fine indeed.
Login in private content.

Once we’re at it a rather silly, unrelated question: Where in the WP backend can I edit the funtions.php? Just couldn’t find it..

Thanks, Victoria – but even after spending 3 hrs on that, I did not get anywhere.

1) As suggested in the support post you were linking, I installed https://wordpress.org/plugins/simple-image-sizes/
2) There, I redefined my “masonry” size to 856 x 528 px, which is the size and proportion I have here on my screen. Ticked “no cropping”
3) I edited my image uploaded it to the library in that very size and proportion and set it as “featured image” in the respective post.

Still, the image is getting cropped on the homepage using ““full-width masonry line”.
What did I do wrong?

Cheers, Jens

Commenting on my own request: I have “natural scrolling” activated in MacOS and the rendering animations activate in an upside-down manner. Likely a connection. Cannot test with another device here.