Can't browse more than 50 issues?

First - many thanks for this program! It's something I'd happily pay for as "best in class".

I can't work out how to browse through more than 50 issues? E.g. I had a problem recently where an issue had been closed but I wanted to look at it. But I have more than 50 closed issues in that repo. The UI seems to max out at 50 and search doesn't seem to apply to issues that aren't shown...

Perhaps I'm missing something obvious?