Board Thread:Support Requests - Designing Your Wiki/@comment-25831615-20161022152436/@comment-24055022-20161022155238

I've dealt with that too, though it seems to have stopped for me. Yeah, when it says an error has occurred, your comment still posted, so just refresh the page to see it. But make sure to copy your comment just in case it didn't. It's just a bug, so you can take a screenshot of it and report it here.