Here is a simple theme I set up that only has the avatar component: Elite Fourum - E4 - efour
https://www.elitefourum.com/latest?safe_mode=no_plugins&preview_theme_id=39
I can repo the issue at this link on firefox and chrome (desktop)
Modern Category + Group Boxes : Elite Fourum - E4 - efour
https://www.elitefourum.com/?safe_mode=no_plugins&preview_theme_id=58
this one seems harder to repo. It causes issues when I’m logged into my admin account (chrome and firefox) but not when I try on a dummy account. The bugs seem similar though between both theme component so maybe fixing one will solve the other.
Hope it helps!