ProxmoxVE 4.1 Cluster - Connection error 599 Unparsable URL

[Japje]

I've tried running the stretch version of libanyevent-http-perl (2.22-1). But that caused the entire interface to not work anymore giving this error in the logs:

Jun 20 16:24:06 node2 pveproxy[3527]: Can't call method "timeout_reset" on an undefined value at /usr/share/perl5/PVE/HTTPServer.pm line 225.