A short backstory: I've been working on a custom home/worldspace for a few weeks now - my first "real" experience with the CK - and have learned an awful lot in the process. This weekend I was wrapping it up and putting the finishing touches on it. It had been loading reliably, with good performance, in-game the entire time.
I had just created a load door to connect it to the Tamriel worldspace, and when I went to test it in game, it suddenly started crashing when entering the new cell. So I removed the load doors - both teleport function and the door itself - but the crash persists. It loads fine in the creation kit.
I thought perhaps the cell was a bit too heavy with things/clutter, so I created a significantly trimmed down version (less plants/clutter/general stuff), but that didn't change anything either. It's using about 50% of the recommended cell memory (or whatever the actual name for that figure might be) as listed in the Creation Kit.
I've checked it with TES5EDIT - no issues. I've been testing it on a clean install of Skyrim with only the DLCs and ASLAL (to skip watching the intro 300 times), so it doesn't seem to be any kind of conflict.
Any help, hints, or... anything really would be super appreciated, I'm at a total loss here but I've put so many hours and so much love into this that I don't want to abandon the poor thing now.
I have the full file available if it will help, though I'm hesitant to post it without a proper credits/permissions list.
Thanks very much for any help you can provide!