So I set my workout for outside, using the TR Configuration on my Garmin Edge 530.
The first step went fine, after that it did not move onto the next step (section of the training)
Is it a Garmin glitch or am I doing something wrong?
It the head unit did track my whole ride.
Are you hitting the lap button? Some steps move on automatically and some you need to hit the lap button to advance to.
This article explains when intervals advance on their own vs needing to hit the lap button.
That’s what I get for reading half an article