I have tried to play around with those numbers too.
Tried with or without autolayout.
I also tried all of those setting under carbon2021, things seems works fine there.
nothing would change anything. the grid still doesn't show up. So I can't see anything taking effect.
The only time the game grid will show up is when deleted the game grid tag. LOL and the default would grid would shows up.
All the controls seems to work as well, but the gamegrid or any color of a tile for example would not being show.