While you're waiting for a response - the BOB isn't in 'test' mode is it? Manual states that that de-energizes everything. Same thing for an E-stop.
Also, when you trigger pin1 or pin14, can you see the on-board LED's light up on the BOB? And also see in Mach (or whatever controller you're using) diagnostics page if the pins are driving high or low? If the screen LED's are off, then come on when you click whatever button you've assigned the M8 function to, then the controller is probably working and sending a signal to the BOB. Once the screen LED indicates the pin is high, then check the BOB. The Port-1 Pin-1 & Pin-14 LEDs are right next to J6 connector. If you're getting a screen LED, and also a BOB LED, but no relay joy - then dead relays.
Another option is to try to change the K2 trigger and see if that changes anything. Set JP2 to 'multimode' and dip switch 8 to 'closed.' Then assign M8 function to Port-2, Pin-14 and try to trigger the K2 relay. The BOB LED is labeled "B" next to connector J5.
After that, I'm stumped.