Meshpart black spots

I uploaded this jetpack rig using the Import 3d tool in studio, but there are strange black areas like shown in the screenshot. These areas are not part of the texture and I tried re-uploading it but they still appear. It looks like theres a blackened version of it trying to overlap. I also looked for solutions on this site but didn’t find anything about it. This only happens to me on the future lighting technology, but I still want to use future. Is there any way to avoid this?

Below are the screenshots (the first is in future and the second in shadow map)