For some reason my last comment disappeared, so I’m reposting it again.
Something else that has broken in my Android launch, but works on the PC is the Up Vector node in one of my actor blueprints. The cube in the picture above takes ray trace impact world 3D coordinates, converts them to local mesh 2D coordinates, and then converts them to UV pixel coordinates to change the dynamic material. A key part to this process is knowing which way the cube is facing so the bp knows to use (x,z) or (y,z) for (u,v). On Android, the cube thinks its facing a different direction than the PC version and uses the wrong coordinates (y,z)=(u,v), so I had to strip out the logic code using the Up Vector to manually set the coordinates to (x,z) = (u,v).