Put the summary of the bug you're having here

What I expected to happen was...:
Nothing, I expected the Potion To Be In My Selected Hub Bar Slot

What actually happened was...:
Majority of items/blocks had all turned white in the inventory.
The blocks (except grass from what i saw) flashed white and it's default texture rapidly.

Steps to Reproduce:
1. get a Jump Boost II potion from creative and put it in the 1st slot of your hub bar (may work for other slots)
2. Scroll to the potion

Video:
https://www.youtube.com/watch?v=x-sIFQD_pu0
(P.s. I realized after that the sudden blacking screen i think was just night vision wearing off.)

Update: I went to a new work save after reporting this and is still flashing white and back. It now happens with any item, and the mob eggs seem to be filled with different colors than a white square