@DjAj Since Engine OS 2.3.0 beat jump is broken on the Prime Go (and was instead moved to a setting - it can no longer be controller via the regular hardware knobs).
The only workaround right now is to downgrade to 2.2.2.
Here is the/a feature request for this problem: https://community.enginedj.com/t/prime-go-beat-jump-size-adjustment-directly-on-the-device-bring-feature-back/44189/30
As @JWiLL from inMusic has confirmed here:
…there is a fix coming. Let’s hope it comes very soon… So far there has been two or three point updates without a solution implemented.