I just recently started to use Blender to make Roblox gfx. I have been trying to use two models in my gfx for a little while. However, whenever I use the material preview mode the textures mesh together, and I'm not sure how to explain it. I import both of the .obj files how I usually would and everything is fine until I use the material preview mode. I have been trying to find a solution on youtube and reddit but haven't been successful. 
Sometimes it works and sometimes it doesn't. It only works 5% of the time and I don't know how to make that percentage go up.
If anyone has any tips please let me know!!
