Oh, I think I narrowed down the bug for the server list. If I Edit the server > Change from the default "Server Password (/PASS)" to an alternate (eg: SASL) method > hit OK > Edit the server again > Change back to "Server Password (/PASS)" > hit OK > click Select > Connect -- My ZNCs will connect, now.

mIRC doesn't honor the default /PASS method for old servers.ini files where no method exists for that server entry.


Well. At least I won lunch.
Good philosophy, see good in bad, I like!