jnils, I have an older working copy of EQ2MAP that allows me to log in and go into and out of housing (Freeport), but seeing this issue on the official forums and in the MOTD in-game, I made a safe copy and then updated the map files. After getting 5 updated map files and one new file, I got logged in and could see the zone but it hung up after that. I never got control of the mouse and had to crash out.
Replaced the files below with the old ones and logged in normally again. Hope this helps.
(PS This was on a ProfitUI_CE installation but I don't think that has anything to do with it.)
map_POI_exp16_rgn_sanctus_seru.xml (deleted in working version)