By this point something is obviously very wrong, so I check my warnings.txt (which is unhelpful), restart my computer, clean the saves in Mash, and try again. The most recent ones still won't load, but the one outside the door will. Going inside still results in a crash within minutes, and new saves created inside also fail to load. Eventually, I decided to see what would happen if I didn't go in, and I have been playing with no problems for the past hour.
The question is, why would CTDs be so common inside one cell but not the rest of the game? Not being able to go to Ald Redaynia is not that big of a deal, but I'm worried that it may be but one symptom of a larger issue that will cause problems down the road. The crashes all occurred while doing different activities in different areas of the cell, so it can't be a particular object item or spot. I'm running a rather extensive list of mods, but as far as I know none of them modify Ald Redaynia. I am completely stumped and a little unnerved, so I'd appreciate any help that can be offered.