Designer Course - Problem with physics after packaging the project.

Hello and thanks for stopping by,

I’m learning Unreal, and I finished Epic’s designer course. Before moving on to the art pass section, I wanted to package the project to share it with my friends. But then, the weirdest thing happens.

After packaging, the physics for the movable boxes don’t work, even though there is never a problem when I launch the game through the editor. In the tutorial, the player is supposed to move the boxes on pressure pads to keep them on. After packaging the project, sometimes none of the boxes move, sometimes some of them move for a short time, and then cannot be moved again.

The weird thing is that it only happens on my computer. I used my USB drive to try the game on a different PC, and it worked flawlessly every time.

I tried packaging the project a few times, changed the properties of the boxes, but the result is always the same. It never works properly after packaging on my PC, but works with no issues on a different PC I have at home.

I started thinking maybe it’s a GPU driver or hardware issue? Is it possible? My PC has an RX7900xt, whereas the one that runs the game without problems has an RTX 3060.

I’m running out of ideas on what may be the cause. I also tried packaging the project on another computer, and then playing it on my original rig, but the result is the same. The game works on other computers, but box physics are broken on mine.

I would appreciate any help,

Thanks!

I’m pretty sure it’s using the CPU for box type physics, so GPU is out.

I did see some stuff about packaged physics not working unless the frame rate was smoothed to 60. I have no idea why that is…

Thank you very much for the answer, you are correct! Setting the smooth framerate to 60 fps solved the issue. Below I attach a screenshot of the settings I applied in UE 5.7 that fixed the issue for me.

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