I can see red mark on suggested edits review queue. If I click on the queue it appears to be clear and there is nothing to review. What could be the reason? Is it a known bug?
I'm not certain, as I haven't seen it in writing, but from what I gather, a red dot on the
Suggested Edits queue means there is a tag wiki with pending edits. This is a permission which requires 5k rep, so it makes sense you wouldn't yet be able to carry out this task. As for red dot in the
Low Quality Review,
Close Vote, etc. I believe it indicates there are flags on posts sitting in the queue.