Material error in Oculus Quest

Hi all

I am working on a project with the Oculus Quest.
Sometimes my materials won’t show up correctly. The colors turn black and have green and red squares in it. ( see in the picture below)
Any ideas why this keeps happening?

Also my videomaterials won’t start playing in the Quest.
Do you know how to solve this?

Thanks and all the best
Chris

I had the same problem on a project with oculus go. And, I started a new project and migrate the content, and all worked fine. But I was courious about this kind of bug…

Works not for me. The error seems to come and go. Have no idea why this keeps happening.

Can you play videos? Im stuck in that

No still stuck on that!