PDF closes when I try to scroll back up the document with mouse wheel on iPad.

When I’m viewing a PDF, I’m able to scroll down the document with the mouse wheel, but I can’t scroll back up towards the start of the document. If I try to scroll back up, it just closes the entire document.

I’m able to use my finger to scroll up and down the document. If I’m at the top of the document and I swipe my finger down again, it’ll close the file. So it seems the iPad is registering any attempt to scroll up the document with the mouse wheel, as if it were already at the top and just closes the file.

This happens for sure when the PDF is opened through the Files app or when viewing an attachment in the Mail app. I just noticed it also happens in Microsoft Teams when I opened a PDF sent in a chat.

It doesn’t matter the length of the PDF either, it could be two page and it still happens. It’s really annoying when I accidentally scroll up and the entire document closes and I have to reopen it and find where I was. It also makes it hard to navigate when using my iPad with an external monitor.