Z fold 7 case issues

I just received an aramid fiber case from AliExpress and I noticed that after putting it on, it sounds weird when I close it. It pretty much sounds like the material is hitting eachother due to too much protrusion around the edges. When I close my z fold 7 without a case, it has that particular sound, but with the case it sound doesn't seem to be closed 100 percent? Does anyone have this issue with cases?