I think I've fixed this bug on the test server, but I'm not sure because I don't think it was ever 100% reproducible. So please post here if it happens.

It was happening when an NPC said something in the chat winow (not in the GUI). I know that it happened sometimes with Frah'ak in GH, somewhere in PotD, and with one of Cleo's scripts, so they'd be good places to check.

I tried and tried and succeeded (at least I think so)  around 11:38 PST if that helps. In cleo's lobby a guard by the rafting area said something like "bye Zrub see you next time" and poof crash (at least I was kicked I am assuming it was a crash).
Don't know if a screene will help, but I got one for right after I was kicked...
Wnet back there and couldn't cause it to happen again...

hehe Server did crash, but it was nothing to do with this (or you). I've notified the dev who is in charge of the bit in question.

A for effort but F for attainment. Try again...

 

I didnt like testing this one 
If the script was triggered on a tile I could try a few things but, this is just a random text output from what I see, along with the guard copping a fair share of spittal.
Got any other maps that need testing?

hehe Well this is perhaps not one to actively test, but really something for mappers to be aware of (that it's supposedly fixed) and say something about it (if it isn't) if it crashes again (to be fair, Longir and Lippy have both mentioned this to me a while ago).

In 2 weeks you'll have the entire human plane to test.