Character skeletal meshes have holes in their mesh in UE5

Hello i have a weird problem in UE5, My low poly character skeletal meshes have holes and slices in their mesh in UE5 after converting my ue4 project to the new ue5.
is there any way to fix this?

don’t worry i fixed it, I found out that the setting in the skeletal mesh has a reduction value set to 0.5 instead of 1.0
it must have changed automatically when it converted from ue4 to ue5