When I want to save the changes, I get that warning. I couldn't change the joining access, either.
I'd be grateful for advice here.

Sorry, can you upload a screenshot of what you see?

Sorry, forgot to mention: I edited things a couple times yesterday without issues. This is new.

It may be a bug. @wjs018@piefed.social @rimu@piefed.social

Thank you very much for responding so lightning fast and for looking into it!

I know this thing with Lemmy, where you originally post without selecting a language, and once you want to edit it, it forces you to select one. Could it be language-related? I only checked the box for German. That just may not have happened before on a piefed instance? Then again, I was able to edit the sidebar afterwards.

Possibly. Bugs can materialise in the strangest ways.

Probably. rimu just pushed piefed.social to the 1.6 branch last night to shake it down before release, so probably related to that. I won't be able to take a look for a bit, but this definitely seems like a bug.

It's fixed now. Thanks for letting us know!

Oh great! Thank you very much!!