Today multiple faction expanded mods got updated with "Added Xenotypes to factions in this mod." And since then lots of us are getting errors on launch from Races Exanded - Saurids

here's the log: https://gist.github.com/HugsLibRecordKeeper/241927b2b4c046054b672b67b03ee273

and others have posted their logs on the page for races expanded - saurids.

Races expanded - saurids is also not in the official Vanilla Expanded collection but I'm not sure if that's relevant