Vilenta's propulsion doesn't work with arcane surge

I have noticed that the cast speed from arcane surge isn't getting calculated in vilenta's propulsion. I was experimenting with the jewel buff and not ascendancy so I'm not sure if it's the same for both buffs.

It gets calculated on PoB but in game I don't see it calculating. I'm using feathered fletching node to see the increase in damage and arcane surge works as usual but the damage doesn't increase on the skill itself. All other instances of cast speed seem to be applied fine.