Cannot Assign Service Value to Blackboard Value

Looking to pick randomly from 3 tasks (quick attacks) on my enemy AI by following the setup here: Random Task in AI - #3 by navid100

I am unable to assign the service value to blackboard value as seen in this image:

Can anyone inform me as to what I am missing? I have this working through a custom decorator instead, but the service and blackboard decorator seem cleaner to me.

do you have check Instance editable in the variable?

Aye, it was set to instance editable. Potentially I was trying to assign the service value on the service itself rather than on the service when hooked into the blackboard selector widget. Regardless I got it working as shown in pic provided although I still feel the service method is cleaner. I could be wrong.

Yes, the services are more cleaner and you don’t need create a custom node and put three times, what you have to do from link is pretty simple, I don’t know where you have the problem?