Groom asset trouble

Hi all!
I have groom asset (xGen hair packed in albemic cache), all works perfectly when i’m manually setting asset to character., but how can i set asset with blueprint?
Groom => set groom asset working, but also there is “groom groups desc”, which not changing with any ways.
I try to set it with bp, for example to change a hair width, but have no luck - it changes but not updating on character…
So how can i change and update Groom groups desc?

upd. I notice that if i manually setting hair with 1000 curves and then changing it to another hair with 10000 curves via bp - second hair stay with 1000 curves, as first…

k, i found if to add to the world some actor with pre-setuped hair and then get it’s groom groups desc value to main actor - test gives me same hair count, hair width and other values., so that mean values switching flows good… but anyway i don’t see hair in world