Apologies for leaving things out.

I'm using Firefox Mobile on Android. The site is in mobile mode.

When I select a tag to view, view the items, and then click "mark all as read" I will generally proceed to read another tag. I'll make my way through "news" and on to "funnies" for example.

I move to another tag by tapping the cog, yes. I have enough tags that I need to scroll to view some of the tags. When I try to scroll, the screen interprets that as a pull to refresh most of the time.

I'm not sure any screenshots would be useful. It's also not helpful that it's inconsistent, I think dependent upon the number of items marked as read?

I will try to capture it in a screen recording - when I have more items built up to read.