As shown in the figure, I create games using the Unity model. When I import the fbx or obj models with materials into pixel over, all the obtained models are white and without materials. How can I solve this problem

I'm a bit surprised that it is working in unity. So on the screenshot you are using obj with MTL. When you are importing such object, a line will be written in the log in case of error, can I get the content of such log file located in %appdata%/pixelover/logs please