Heyho. 😊
I'm using the diagonal movement in my quest. So when I hold the "R-", "L-" or one of the "Ex-buttons", Link isn't able to go up-right or down-left during holding the button.
Edit: I'm using RC2. I forgot to write this.
Diagonalmovement doesn't work correct, when holding a button.
Unverified... maybe it's a limitation of your keyboard? What are your keys set to?
I've tried this with a joypad and have no issues.