so I had the same issue with a very simple TV model inside a house, so I thought it was the model and I made a completely different new model, placed it inside and again it DIDN’T WORK, then I saw your comment and I found ,no collision" preset. It finally appeared in the final rendering, unreal did put out the error log about it but the model was finally visible. thank you very much for this, I spent around 2h going back-forth looking for solution online and fixing/reimporting the model