Function Keys not working (MacOS 15.5)

Hey everybody,
Metagrid Pro (latest version) works fine on my Mac, but for some reason function keys are not triggered. I have set them to standard behaviour in MacOS (so no need for fn key to access them).

So for instance i can trigger a Keyboard Maestro Macro with F10, but Metagrid Button that presses/sends F10 does not work.

Doing the same with “A” is working, though when set up that way.

What am i missing?
Thank you very much and all the best,
drym

Can you do the following to check - create the macro in KM and a button that sends F10 - try to assign the trigger to the macro by pressing the button in MG - check if F10 is registered.