Small bug report that I believe applied to version .30, too: Thing actions assigned to pickups like Armor don't fire.
For example, my map in DUMP 2, MAP28/"The Volcanic Oasis". In the second half of the map, there's supposed to be an arena fight that's triggered by grabbing a blue armor - however, it doesn't when you pick up the blue armor in Samsara, rendering the map unwinnable.