Anim Blueprint instance not update when tigger UI

[miccall]

At the beginning, I have an actor, which containe an Animation Blueprint, and the Event Update was executed normally

Now, I have a variable “Blend ” that is passed in from the Eidtor Utility Widget

but when I tigger in UI ，the Event Blueprint update animtion no longer called

It is re-invoked when my mouse is no longer dragging the UI ，and the “Blend” value has been changed by EUW

I want “Blend” value changing when I dragging the UI Slider ， Instead of release dragging

[miccall]

I also found that changing the value of a variable directly in ABP, will also cause the update Animation event to stop tick

[miccall]