Falloucik

After testing the example above on Samsung S20 Ultra on almost every mobile browser, I think that I finally figured out why it occurs. The only browser that works is...

Thanks for suggestion @nicolocarpignoli It turns out I was wrong, however I managed to solve the issue following the solution from https://github.com/AR-js-org/AR.js/issues/147#issuecomment-683330688 I changed the width and height to 960x720...