As far as I can figure it was a file corruption issue - something happened between the last time I tested the v1.22 update and then packaging it and uploading it to Itch.io. From now on I'm going to have to test for corruption before pushing an update by downloading my own mod from Itch.io and launching a new save. Very bizarre issue and sorry for the inconvenience!
Viewing post in v1.23 - Please Redownload comments
I would like to gradually expand this to include more sims, especially the early DLC sims that don't have preset weather outfits and some of the Maxis gallery sims, yes. Probably not all of them, since some are from different timelines or don't fit the current game, but certainly some.
Aliens Reloaded is currently my priority, though. I'm working on a very big update for that one right now and hoping I can get it done before the end of the year.