If you’re having problems with minecraft, the debug screen can be a good place to start figuring out what’s wrong. In this post I will detail the common shortcuts, useful for debugging a wide variety of issues.
Open the debug screen – F3
More debug details – F3 + H
Force crash – F3 + C for 10 seconds
Pressing the keys 1 – 9 while in the debug screen will show you a more detailed view of the graph on the right. 0 will reset the view.
Reload all web-loaded client resources – F3 + S
Reload all chunks – F3 + A
Reload Textures – F3 + T
Cycle Render Distance – F3 + F, Reverse Cycle – ⇧ Shift + F3 + F
Toggle Auto Pause – F3 + P
Toggle Hit Boxes – F3 + B