The glass appears striped, which only disappears when it’s set to a refraction value of 1 (or no opacity). Any refraction value causes the issue to reappear. It happens across all glass materials on all assets… I’m at a loss
Okay I’ve fixed it! The issue comes about when the model is located too far from the d5 origin point. I just did a ‘select all objects’ on each layer and set it to 0,0,0. All the glass appears correctly now and everything is still located correctly relative to each other!
I’d advise to centre the project on the origin at the beginning of the project, to avoid this issue