Your latest version 3.5.5 has broken the display of email content in that when I scroll down to see the full list of content, it stops scrolling before it gets to the bottom of the page, cutting off some content at the bottom. This didn't used to happen.
I think it's a rendering problem. I click on an HTML msg and it will show just part of the content and not continue. I click away to another msg then come back and more renders. Click away and then back and it will render less this time. It's wacky. But multiple emails (HTML) have not made it to the bottom of the content before the scrolling ends. Messed up rendering engine. May have to switch apps till this clears up as I may miss content that is important to see but it's not there.