Incorrect physics simulation results in the Physics Asset Editor

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For testing purposes, I disabled all collisions for this block.

Make sure have the correct constraint

Enables gravity simulation and only simulates the selected

The left hand floats upward instead of dropping downward

It works fine when the gaps between blocks are super large

I googled for a long time, read a lot of posts, and watched a lot of tutorials on Youtube to prevent missing something, but no one had the same problem as me. I spent almost 7 hours on this, but still couldn’t find a solution. I even thought it seemed to be a bug in the engine.

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With some help from people, I finally found the cause of all this. The root of everything is those preview assets attached to the bone slots for preview. I suspected them yesterday, but I thought the EPIC developers would not be so stupid as to let them participate in the physics simulation in this window, so I missed them at that time. Until someone mentioned it, I suspected them again and tried them, and then I found the cause of the problem.