That indeed was the issue. The Z Stepper was incorrectly wired.
A little strange that the Z stepper was plug and play on both the RAMPS 1.4 board I was using and the stock CR10 board.
Thank you both for the suggestions!
A little strange that the Z stepper was plug and play on both the RAMPS 1.4 board I was using and the stock CR10 board.
Thank you both for the suggestions!