UE4 - Event hit, stops working as playing time passes in packaged project, why?

Hi, after packaging the project for Windows 64, and play the game, event hit stops working after hours of gameplay, this behavior is only happening after packaging the project, this spheres should destroy themselves after hitting the ground, they do destroy themselves when the game starts, but after 1 hour of playing, spheres get in contact with the ground, stay there colliding with it, but they do not destroy themselves anymore… this is inexplicable, since they do work when the game start and nothing changes.

I searched for solutions, but i found a lot of people mentioning this types of issues in Unreal 4… without answers, so i don´t know what to do, because the scene is exactly the same, there is no level streaming, nothing rare, same sphere BP, same scene, event hit is just not working after time passes, about 1 hour latter, and since not any sphere explodes, and the ground becomes filled with spheres, then the project crashes.

Please help!

Sounds like a memory leak. Use the crash log to determine where its crashing.

How to prevent memory leaks in UE?

I have a gamming pc and the game is not even requiring half of its memory at 90FPS, it has to be something in UE, maybe we can change something in the defaults