Caps Lock + Space = Nothing?

Hi for me it is like every game like zbs. I can't jump Fortnite or minecraft when I press the spacebar and capslock button at the same time and it sucks.

why this is so important: I sprinted in almost every game with lock key and jump on spacebar and I have to press it at the same time.

This may be due to your keyboard. If a Ruberdome keyboard uses keys that share the same circuit, you can't use them at the same time. Only solution is another keyboard.