Uhtred augury bugged in cast on crit

If you use cast on crit with a spell and uhltreds augury as well as two other support gems that support the slottet skill, it does NOT get the +3 levels from uhtred augury support gem. However if you only use one support gem, then it does. For Cast on Crit itself it seems to work normally. Since this is not how the support gem is described and works diffrently than last season (without any noted changes in the patch notes) i assume this is a bug.
Would be great if you could fix this, because this makes using it with Cast on Crit significantly worse and honestly very unintuitive.

Ran into the same issue, fix would be appreciated.