1. Issue: The corresponding map path is blank inside the max file explorer, generally caused by using the third plugin to import model or material, so the map path is blank which cause the program is unable to get the correct maps, then the render result has lost maps.
Wrong Render Result:
Correct Render Result:
a. Open your 3ds Max file and press “Shift + T” to find the lost map, please refer to the following picture:
b. Tick the lost map, then right-click "Set path…".
c. Please click "..." to search the map path in the pop-up window then click "OK".
d. Save the new path then resubmit the task.