right hand board unresponsive unless flashed with left hand side FW

[boogaloodude]

I am using the reference ZMK FW. Left side board works great. Right hand board is unresponsive unless flashed with the left side FW. Is this an indication that I've somehow bungled the build? Or an actual issue with the reference ZMK FW?

[Cirius1792]

Same here, any hint on a solution?

[Cirius1792]

Right after the comment I arrived to the obvious solution myself.

The left part of the keyboard is the main one. The right side communicate through the left side. So having both halves powered on at the same everything works fine.

The reason why I discovered it so late is because none of my halves work on battery power... but this is another story