Need Event in Actor Class Blueprint to communicate with UMG

Hello -

I am looking to use a Custom Event within a Actor Class Blueprint to trigger a Custom Event inside a UMG blueprint. I attached reference. The UMG interface on my screen is working as intended. But using an Actor Blueprint to try and talk to the UMG interface is not doing anything.

Do I need Event Dispatchers. Do I need to cast into the UMG? See attached. Thanks in advance for any help.