when open AR mode, browser ask “download 3D model” instead of “open 3D model”

I’m having an issue with the AR mode.

If I use “puzzle-1” (picture example below). It does export the new material applied to it (which is great).
But the problem is when I click on the AR button (from my phone) they ask me if I want to download the usdz model, once downloaded, I have to go through the download list and open it from there.

Compare to “puzzle-2” (picture example below). That if I click on the AR button (from my phone) they ask me if I want to open the 3D file (without having to search it from the download list) which is what I want to achieve. Only problem it doesn’t export the new material applied to it.

I’m not sure what I can do to fix it.

The link to the AR 3D scene (using puzzle 1): https://v3d.net/133h

Thanks for your help!