I have this weird artifacts on the light map texture (.exr file) It opens normally on desktop and Android device (samsung s9) but it is weird on Iphone 8. Have not tested on Mac PC yet.
Tested on Safari, FireFox and Chrome browser. All normal for Android but not for IOS.
The same behavior happens when I open the Orange Room project from Playcanvas, but not the SeeMore project. Maybe there is some settings that I missed.
My project link if you want to test it: https://playcanv.as/p/cSqbiSHU/