In the topbar, I see "N total posts awaiting review", but clicking on it shows nothing for review: all items (low quality post, first post, etc) have zero. I had already done a review, but why is the number still more than 0?
For example, N is currently 8 for me. But in this session, I didn't skip 8 review items.
Sometimes posts are in multiple queues, e.g. First post and VLQ. When you skip them in one queue, they get skipped in all queues, that way you can have a bigger number showing up there without actually having skipped that many posts.
Your answer is caching.
Additionally, skipping items removes them from your queues but not the topbar count, and there may be some items you can't review in the first place.
