Can't open any of my Substance graphs after 13.0 update, immediate CTD

I have a large .SBS library for a project that i'm working on, and after auto-updating to 13.1 all of the graphs CTD upon opening after the updater gets done converting them. Log shows no errors, just immediately cuts off. Rolling back to 12.4 allowed me to open them again. Something with the new update seems to be incompatible with my library, would really appreciate some help.