Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General SecretRegionTrigger not working

Yes, it's probably a good idea to use ProcTriggerRegisterForPlayers instead of TriggerRegisterForPlayers everywhere (except, of course, in ProcTriggerRegisterForPlayers itself, otherwise it will just call itself recursively and accomplish nothing). If there are cases where CharacterEnteredTrigger is better, which would be exceptional indeed, they are unlikely enough to be negligible.