Communication timeout during homing

So getting this awful annoying fault quite regular atm.
Faults on probing Z with Beacon. Happens 1 in every 2 Z probes. Supper annoying. The beacon seems to be working fine I can get it to z tilt and mesh but then the next job there is 50/50 itl throw this .
Changed to running direct 5v to the Pi with the 4 gpio pins, 15a available.
Tried unplugging the nozzle cam and got no difference.

Happens on both my printers with beacon, not sure what to do next. Any help appreciated