Hi people with mine in minecraft, the hitbox is not displayed and I play in the 1.13.2
What did you try?
F3+ b
Does it work in other / older versions?
No, unfortunately not
Is good. Then it's the keys and not Minecaft.
Do you happen to have a Fn key on your keyboard?
If yes, then try:
Fn + F3+ B
All 3 buttons at the same time.
How do you mean?
See my other answer.
I CANT ENABLE HITBOX EEN WITH FN + F3 + B!