Could be the number of steps you use and the start / end. If you count from 0 to 10 I think Chronograph counts it’s 11 steps, not 10? But then again, I would expect decimals in the transition value and the same place it skips. Maybe share your flow, not just the output?
Do you have additional conditions in the flow with the notification?
I also do not always trust timeline notifications. They can throttle, although they shouldn’t at a minute apart
I tried to reproduce but cannot, albeit in seconds. I didn’t want to wait 10 mins. - Then tried minutes too, same normal result. No skipping.