Mystery Materials

Hi, I seem to have a lot of materials that have accumulated in my main template plan materials list [view plan materials from the materials format painter]. I have made sure the plan is entirely empty with no walls or content anywhere, including deleting all CAD Details just in case. The list is showing some 85 materials as 'in use', but from where? The problem is that when the model is exported as a 3DS files for use in other 3D modelling software, it exports all the materials [including t

Hi Robert, OK it's clear now. I can see that they are not a mystery. In fact I opened a chief example plan and realised that even without adding user materials during the evolution of a plan, there are over 60 materials by default in the plan materials list sitting in the background. This just needs careful management because it's very easy to build up over 100 different defined materials. Technically, just to clarify for any Sketchfab users, as soon as the 'different materials ' pa