Hello, I have bumped into this issue where the blocks in the background just flicker whenever I'm in the pause menu, if I go to the creative menu to search for items it doesn't flicker but blocks change to strange colours. Anyone can help on this? Thank you.

Adding new info here. Seems it's a problem of shaders, whenever they are not in use, this happens. Otherwise with shaders on the flicks go away.

Update: Issue is with Oculus+Rubidium. Deactivating them solves the issue.