I’m trying to suppress the force propagation, but so far we have not been successful. Geometry collections have a force propagation option, but I think this is for fractures.
My guess is that when force is applied, it doesn’t just fracture, but the entire collection is being pushed together, causing distortion. When these distortions pile up, they build up and become powerful enough to cause destruction. This distotion was so small that it could not be blocked by an anchor field or by being asleep.
It can only be blocked by making it very durable, completely static, or by opening a gap. All of these methods are very difficult to combine with destruction or building…
I hope someone can find a solution based on these results. It’s difficult for me alone.