Black Spots in UE 5.4 – Anyone Know a Fix?

Hi! I’m working on an interior project that needs to be presented in VR. I initially prepared the project in Twinmotion and then imported it into Unreal Engine 5.4 using Datasmith. However, I’m noticing some black spots appearing on certain surfaces, and I can’t figure out why. Has anyone encountered a similar issue and could help me resolve it? Thanks in advance!