I've probably accidently changed the video settings. I reset them, they're fixed now.
Ok it somehow fixed itself it's cool now
The first phone I opened the world with has Android 7, the other one has Android 11.
I think your problem is the same as mine. But I don't have a problem with doors, weirdly.
I haven't changed it. The problem happens when I open a new world too
If you created the world before the update, you must go to an unloaded chunk to find any copper ores and amethyst geodes. This may be easier if you have maps that show you where you have been in the world but if you don't, simply go really far away and make sure you have never seen that place. I'm not sure though how you managed to find glow berries.