Thank you for the reply. We went through the 3D requriements and are confident that we met them the model had 47,237 vertices and that was apparently just too much. We uploaded a smaller model and had no issues with it loading other than the entire Manifest 3D application blinked on and off as the model loaded.
So, we think for now we are Ok and it was probably that the model was just too much for the hololens. In another effort previously we had used a Magic Leap for the same model and it loaded fine, but for this effort we weren’t able to get the ML to test with.
Lastly, a nice feature request might be that there is a progress indicator on model loading. On that large model from last night, it took ~5.5 minutes to load and with the dialogs blinking it wasn’t clear that the model was actually rendering.