i'd like to resolve whatever is causing this, a few questions if you don't mind: do you have any UA spoofing plugins enabled? IPv4 or IPv6 endpoint? VPN? HTTP/3 (QUIC)? (you'll need to check the session log in the browser console for this).
those are the only things that I can think of that may be causing this issue... as i said in my other comment, i've had to take a defensive position from bots hammering kbin.run, so i'm leaning towards something i did that's interfering with legit traffic.