Can't get QUIC working

Just today, it would seem, WHM updated to 64.0.32. After this, it looks like QUIC stopped working here. I have closely followed your documentation, but I continue to experience difficulty getting it to work and stay working. I am not using Litespeed vhosts, but the cpanel/Apache default. I have done everything listed in the blog, and even force reinstalled Litespeed (it seems I'm now on 5.2 Build 3), but it still does not want to work. The firewall has UDP ports open for this as well. Can someone from Litespeed Tech help?