Hello
The mount movement speed can be changed also with the keypad, as explained at page 11-12 of the StarGo User Manual.
If you are going to notice once again this behaviour, be sure that the movement speed has not been accidentally switched to “Guide”, in this case the movement will be really slow and you may think that the mount is not moving.
In order to check in real time the movement speed, open the StarGo software and check which speed is active.
If this is not the reason of the behaviour noticed, please let us know in detail your workflow so we can try to replicate your behaviour and help you to fix it.
Best regards