hi @lklepper! Thanks for reporting this. We’ve done a “best effort” attempt at this right now, but we’re planning to dig deeper in the viewer and do optimisations, and general upgrades. We’ll include looking at the materials problems too!
PS: I’ve added it to our bucket list here: Viewer: Misc Wishlist · Issue #326 · specklesystems/speckle-server · GitHub
PPS: Welcome to the community! Feel free to Introduce yourself 🙆 if you want to 