Hi there, Kevin,
I thought I'd post this here as it seemed to the most appropriate topic but if you'd rather I opened a new topic I can do that.
I've run into an interesting feed parsing crash at the website: www.looper.com
XFeed correctly identifies two feeds as RSS 2.0, and Atom 0.3.
One can add either or both, and they will turn up in the correct category no problems but any attempt to open either will result in an instant crash.
I'm running this on an iPad Air 2, with iPadOS 15.7.3, and an iPhone SE (v1), with IOS 15.7.3.