Able Ability System Info and Support Thread

Using a blueprint based on ACharacter for the preview asset. If I have the Able editor window open and I make a change to the character blueprint and compile it, when I come back to the Able editor, the Play button does not play the ability. I hit the reset preview asset and I get another asset spawned on the old one and then all works ok. If I close and open the window it clears off.