Bind DNS Resolution Slow After Moving VPS

If anyone else has this issue, it looks like it may be a bug in 6.17.

Per Undefined subroutine &virtual_server::check_domain_connectivity called at /usr/libexec/webmin/virtual-server/virtual-server-lib-funcs.pl line 8068

I did a downgrade to 6.16 (On Centos 8: dnf downgrade wbm-virtual-server) and everything is working fine now.