An issue may arise where cracks appear in the texture of a model within a GLB file that is downloaded from Meshy, and then imported into an UE scene:
Currently, the UE version that has this issue based on our testing is 5.5.4 and 5.6.0.
What is the solution?
This issue occurs because MipMap is enabled in Unreal. Therefore, disabling MipMap will solve the problem. To do so, follow these steps:
Double-click the texture
Scroll to Level Of Detail
Under Mip Gen Settings, select "NoMipMaps":
As shown below, the model on the left has MipMap turned off, while the one on the right has MipMap turned on:
And that's how you resolve that issue!