I get errors when uploading certain animated .webp-files, blocking posting.
Not all files are affected, but affected files are always affected. Occurs for stills and animated files, but more often for animated.
I’ll comment to add some files with errors (all NSFW I’m afraid)
Try in the web interface, I would assume the instance blocks the images. Mine does too, with an error about the image being “too wide”, so some filter seems to malfunction for animated webp.
Tried it just now.
Animation 1 got “doctype invalid JSON” error, so probably an instance/file issue.
Animation 2 uploaded correctly on the Web interface.