I am having trouble posting comments to posts in the Coffee community today. I have posted about it in the Support community but since those comments posted ok there, I thought I would try creating a test post here in c/Coffee to check whether is limited to comments.
Sorry I didn't see this till now. I'm not sure what language settings you are referring to but I checked and I can reply to posts and comments now. If you changed something then 👍 if not I have no idea what it was 😁