More of a feature request than a bug, but since I didn't see a place to put those... The old forum had the "location" field (if filled in) in plain view next to each user's posts, which was very useful in marketplace threads and occasionally in other contexts as well. That would be nice to get back. Right now you have to click around a bit to get at the necessary info, and repeat that for each individual user you're interested in. (Shouldn't be relevant for this issue, but I'm on Chromium right now. Any browser should work though (Desktop that is, I have no idea how the site looks/looked on mobile).)
It's in the popup/profile pages on XenForo but can be enabled to show on the postbit by the admins by going to Appearance > Style Properties > Message Elements then tick "Show author location" and it should show now.