Bug 232378

Created attachment 442588 [details] 3d-model without color (should be orange) https://github.com/google/model-viewer When using model-viewer (https://github.com/google/model-viewer) on an iPhone with iOS 15.0+, it seems like the 3d-object sometimes displays without textures. While this seems to only affect a small subset of our 3d-objects, it seems pretty consistent to replicate on my iPhone. On first load it usually displays the 3d-model without any color (see attachment), or partially colored, and if you refresh and try again, the page seems to crash or refresh. AR works as intended. We have tested this on the following devices: Android - working iPhone XR/Safari/iOS 13 - working iPhone 7/Safari/iOS 15 - not working iPhone XR/Safari/iOS 15.0.2 - not working Here is a live demo where, on my iPhone, it either works, displays either black/gray (without textures), refreshes the page, or crashes the page seemingly randomly when I try to test it by refreshing the page constantly: https://crawling-bronzed-dash.glitch.me/