I have 4 cubes, was running only 2 while waiting for a 2nd PSU. Got the second PSU (Corsair RM850) and plugged it all in, everything starts up and runs can connect but one of the cubes (one that wasn't set up previously) is has all "O"'s but has almost 100% reject rate and has a hash rate of 342

ASIC_01-16: O O O O O O O O O O O O O O O O
ASIC_17-32: O O O O O O O O O O O O O O O O
ASIC_33-48: O O O O O O O O O O O O O O O O
ASIC_49-64: O O O O O O O O O O O O O O O O
ASIC_65-80: O O O O O O O O O O O O O O O O
ASIC_81-96: O O O O O O O O O O O O O O O O
M_01-16: 000 000 000 000 000 000 000 000 342 000 000 000 000 000 000 000
M_17-32: 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
M_33-48: 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
M_49-64: 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
M_65-80: 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
M_81-96: 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
Jobs:0000001855 Accepted:0000000018 Rejected:0000003245 (3: F1 F2 F3
MHS:00342 Utility:005 Efficieny:000.97%

This is the output, all are running on a BFGminer proxy, have swapped power supplies, network cables, split the cube and reseated/tightened up all the blades... just this one cube is behaving this way

Anyone else seen this happen or heard of this happening

Thanks all