Seems some key bindings don’t work with TigerVNC on Windows 10 with Kali linux (Kex)

I am running Linux in WSL on Windows 10.

The Linux distribution is Kali.

I am using Win-Kex.

I installed the Window Manager dwm from Suckless.

But for some reason some of the key bindings don’t seem to work.

So to move a window in dwm I press the window key + shift key + (number) a number from 1 to 9 (those are called tags).

But for some reason I can only move windows to 1, 4, 5, 7, 8, 9.

So it doesn’t work for 2, 3, 6.

Unsure why.

I am able to go to all the tags: window key + (number)

Could it be that TigerVNC is confused about the key binding or Windows 10 or could it be something else?

I am using dwm on my personal laptop (bare metal), and I don’t have any issues.