Some keys of my keyboard don't work on the PS4. Is there any fix?

With Fortnite BR having keyboard and mouse support I wanted to play with it but some keys don't work, including Q W E A S D Z X C. I tried binding some stuff and using IJKL instead of WASD but it gets very confusing (specially the numbers because 1 to 4 are too far away from IJKL). Does anyone know what's wrong and how to fix it? Those keys don't work outside of the game too.