For anonymous users (when the popup reminder to register is present), the topic progress indicator moves beyond the last post when scrolling to the bottom.
Could you please post a screenshot of this?
I know what he’s talking about, I can definitely verify that it does happen when the anonymous user call to action is present. It’s a pretty minor UI thing though, and rare.
Here is a screenshot the circle is where the progress indicator used to be before the anonymous user call to action appeared.