When importing an OBJ file, one node can only read one material?

When importing an OBJ file, the number of Materials for each node is only one, and the VertexElementMaterial read out is null, but when you open the OBJ file directly with Notepad, you can see that an entity uses several materials, which are imported using aspose Each node of the OBJ file can only read the last of several materials used by this entity (for example, when using materials 2, 4, and 8, only 8 can be read, and when using materials 1, 4, and 7, only 7 can be read) Is the way I import it wrong, or aspose has limited support for importing OBJ now?

@LIRA0306

Would you kindly share a sample OBJ file for our reference so that we can test the scenario in our environment and address it accordingly?

Road.zip (1.7 MB)
When importing the FacilityModel.obj file, it can be seen that only one texture image is read, but in fact it uses multiple texture images.

@LIRA0306

An investigation task as THREEDNET-1215 has been logged in our issue tracking system for the sake of further analysis. We will look into its details and let you know as soon as the ticket is resolved. Please be patient and spare us some time.

We are sorry for the inconvenience.