By the way, it’s Vanguard, not Avant Garde.
Anyway, this came up a few days ago…
It seemed to work just fine for some people, but not for others, possibly based on which charm type / sub-type you were using, as to whether it incremented the 5 uses / 10 uses tasks or not.
The work-around in that thread was to use one of the other charms you got doing your runs as using those seemed to increment the task properly.