Some zones crash clients- others don't
 

I'm using the UF client, and decided to monkey around looking at some of the UF zones by #zone 'ing. This worked as well as I had hoped (actually better since they mostly did have spawns).

However, I then tried some SoD zones. discord (Korafax) worked OK, but when I tried to zone into discordtower my client crashed and continued to do so each time I logged in until I moved the character in the db.

I noticed that I could zone into and run around zones that don't have .map files in the eq-emu map svn repo, so the fact that discordtower doesn't have any doesn't differentiate it from, for example, coolingchamber. As far as I can tell all the necessary files are there for my client.

Any ideas on where I should look to sort this?

Also, there are a ton of zones with no associated map files. Is it worth me generating them from my EQLive folder and submitting?