I'm stuck creating USDZ files. I've issues with older devices, basically anything older than the iPhone X, displaying items with artefacts resulting from normal maps and other issues whereby the item appears entirely black.
iPhone X and iPad on ios 12 and 12.1 betas run fine with no normal maps:
iPhone 7 iOS 12 non beta with no normal maps:
When I use normal maps I get the following issue on older devices:
You can download the raw files here: https://drive.google.com/drive/folders/13w4fFTr6EQSUyQeEryxQWp0FcPN-84Ci?usp=sharing
Any help is extremely appreciated <3
