I don’t know what to do. Blueprint has two states, intact and broken. During the intact state, the geometry collection has physics simulation turned off. If the object switches to the broken state, the geometry collection should have physics turned on and should break into pieces. But instead of the object breaking, the unreal engine breaks
Chaos destruction development seems to have been abandoned long time already. I also found if gravity is disabled, enabling gravity for geometry collections via blueprints is not working - gravity still remains disabled. Also - using the sequencer or blueprints to change the location of the actor that includes a geometry collection is not fully working - the object changes location but it breaks in the original starting location where it does not exist anymore - like an invisible object would break into visible pieces. There are two options - either resort to do workarounds upon workarounds or use chaos destruction only in the most simplistic scenarios you can think of.