What are the export settings in Blender (1-2 screenshots please)? The coordinate system in Blender is different from Unreal:
Blender = Y is vertical up, -Z is forward facing camera axis
Unreal = Z is vertical up, -X or X is forward facing camera axis (unsure which exactly)
This can be changed in the Export settings on export of an .fbx. Actually, those coordinates in Blender are for FBX, not just Blender, from what I remember. There’s a few other settings too. I know it can be changed in the Unreal import settings on import by selecting “Convert scene” or something similar, but it might work to change it in Blender first. The other settings are to do with whether properties added to the model in Blender are retained during export, smoothing groups applied or not, and several others that are important for maintaining the model from Blender to Unreal. The issue might also be how UE got a new pipeline for export/import, and probably certain things that are not automatically processed anymore when importing, so those need to be set in the export program, in yours and my case it is Blender.