Home button doesn't work

Hello
I busy converting a manual lathe to linuxcnc. So far all good...but now I reached the electronics part.
Home switches are connected.

If I check with HAL-meter both switches are working fine.
I first setup the X-axis. And it's fully working and homes.

But somehow when I press the home button for the Z-axis nothing happens.
It has exactly the same home settings as the X-axis. Except for the home sequence value (2 instead of 1)

Any ideas what could cause this?
I use the Gmoccapy gui.

Which LinuxCNC version? Which GUI?

Does "Home All" work?

I am wondering if it is trying to home a non-existent Y axis. I think I recall seeing that once.

In was running 2.8.x
I switched back to 2.7, and everything is working fine