Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding Troubleshooting Editor crash after update ""Osiris Assert"

From the Osiris Rules

Warning: an event can only be used as the first trigger condition. Putting it at any other place in a rule condition should result in a compilation error (and it usually will, but there are some known bugs in the compiler where it will not print an error and generate non-working code instead).

Non-working code often yields undefined behavior that can sometimes appear to work and then suddenly not work when other subtle changes occur. I'm guessing that's what happened here. Glad it's working now in any case.