Objects destroyed while having simulate physics on

Hello, happy new year to everyone. I have a problem with my game, I imported a couple of cubes from blender to ue4 and I wanted to make them move around, so I enabled “Simulate Physics” for those cubes. But unfortunately after I move them around for couple of seconds they get destroyed. Why is this happening? If I simply drag and drop a cube inside from ue4 it seems to work fine but not with cubes from blender? Any help to solve this problem? Here is a video for you to watch with that problem. Thank you all.