To temporarily fix this issue, you'll have to delete all XBLProfileCache files then reload Minecraft.
Fixed in 1.21.50.25
You press 'E' to close your inventory and then the bug occurs. It doesn't occur when you press 'ESC' however. This also affects other in-game screens like trading, chests, etc.
This issue has been fixed.
Fixed in 1.21.50.20.
Fixed in 1.21.40.22
Fixed in 1.21.40.22
Not that I'm aware of.
Fixed in 1.21.30.22.
I am using a GUI scale of -2. It may seem like this occurs if you have 100 screenshots in total. And why I have 137/100 is because Mojang may have added a limit to how many screenshots we can have at a time.
Fixed in 1.21.30.21.
Fixed in 1.21.30.21.
Fixed in 1.21.30.21.
It appears not. Sadly, I believe this is for something else within the screen that is unknown how to get to. Either that, or unused entirely.
Note: This only affects the new Servers tab on the new Play Screen.
Fixed in 1.21.20.24.
Can confirm.
Fixed in 1.21.20.23.
In 1.21.20.23, its only partially fixed. It is saving now but in most cases, when you click "play" the game crashes.
Fixed in 1.21.60.25.