I'm not 100% sure the conditions that creates this bug, but I have seen it quite a few times when leaving comments.

I got this comment errors aswell. As a rule, however, this error occurs even though the comment is posted at the same time. I thought that the comment was possibly being searched for in the 2nd layer of Leofinance, while it had already been executed on Hive - so it could no longer be found and this error was spat out as a result.

I could only explain it in this direction, as the comments go through despite the error message. Maybe it's different for you, but I suspect not.

Posted Using LeoFinance ^Beta