Put the summary of the bug you're having here

What I expected to happen was...:
Nothing

What actually happened was...:
When I'm going to the menu while getting back of a world / other screen,
there's a fast white screen

Steps to Reproduce:
1. Open minecraft and go to the menu,
2. Go to multiplayer screen,
3. Then come back to the menu screen and just before you arrive,
A fast white screen flash !