I'd like to modify this a bit because these two issues are likely correlated.
I have also found that if I restart Freeswitch or the server as a whole, I get a bunch of database errors. Only by restarting PostgreSQL on that server a few times will things work.
I did do the test of logging into Server A through the GUI and console. Stopping PostgreSQL, and refreshing the GUI. It gave an error the first time and then loaded on the second refresh (HA Proxy kicking in). I also clicked around to ensure things weren't cached and actual data was loading. So...it seems it can in fact communicate between both nodes.
Server B loads data just fine, which further shows to me replication is occurring.
If anyone wants to take a bit to look around, send me what you'd charge.