Ditto for me. I've never heard of pushing the GOTO button on my Hand Controller after each align star is centered in the eyepiece and entered on the Argo. Is this a new direction to follow? If you push the GOTO button on the HC at that point in time, then the disengaged drives will start to spin up out of control.
It's in the ServoCAT documentation (Gen 3), and a practice highly recommended by Gary Myers.
The GOTO button(s) only register as "enter" buttons until 2-star alignment is complete. Once Argo has a valid solution the ServoCAT GOTO button(s) return to their normal function.
In actual use this is a wonderful feature using the wireless hand controller. My scope is long (2800 mm) and the reticle eyepiece provides about 240x. The align star is moving across the field very fast, no way I could reach back to the Argo to hit the enter button and get an accurate fix.
If you don't have the wireless HC, it would be worthwhile to get a long cord from StellarCAT so you can get the wired HC to the eyepiece.
BTW, if you finish alignment and forget to engage the drives, the motors will spin when you attempt the first GOTO. No problem though, either let it run out, or do an emergency stop. Engage the drives and hit the GOTO button again and the unit reads the encoder values and re-figures where it needs to go. You do not lose alignment.