decibell

I recently purchased an Analog Discovery 2. I was hooked up to a circuit using the breakout cable on the other side of the BND board to do some testing on an SPI bus using the digital inputs. I got some data but I didn't get far enough to verify all that i needed. I disassembled the circuit and identically reassembled the next day, and it appeared none of the digital inputs were functioning any more. I verified the pins of the circuit being tested were active with the oscilloscope. I also used the waveform generator to generated test input but all inputs tested would not show any signal coming in. I also reinstalled both software packages and rebooted the host system. Are there any other possibilities for why this would stop working?