The issue might be stemming from the “Intravenous 1 Remaster” DLC that you can get for Intravenous 2.
At the very least the mods seemed to stop crashing my game after I uninstalled it.
Edit: Nevermind, game started crashing after I got to Steve’s level.
Yeah, it seemed like the mods worked on the first level. then they crashed the game on the second. Then when I made a new save it crashed on the first level. I am guessing there Is something that changes in the game after the first level that crashes the cheats. Might be an achievement (which would be crazy) but I don’t know what else changes between the first and second level
Instant game crash 
hopefully it gets updated soon