I'm fairly certain the cause of the crash (with me at least) has something to do with the House of Hope. I revisited a previous save where I'd just entered the HoH and immediately went back to the Devil's Fee. I was able to fast travel to South Span of Wyrm's Crossing and back to Baldur's Gate (Lower City).
The problem is that I visited another save where I'd just finished the HoH and looked around for any mob with more than 0 HP but couldn't find any. I even used Greater Restoration on the three petrified Debtors in the jail. In this save I was able to travel back and forth from the Lower City, crashing during the loading screen (with no crash report!).
Does anyone have any ideas? I'll probably just do the HoH from scratch tomorrow and will see what happens.
