Hi, Thank you for your inputs to the question. I also tried the same and it working for me.

However, I few of my Activity Sets which were skipped based on advanced trigger and stay in the "Awaiting Trigger" status eventually change their status to "Error" and a few of them into "Cancelled" state. 

The Error state for an activity set is alarming and though harmless, may not sit well with the client.

What could be the possible cause of this "Awaiting Trigger" status to "Error" change? Is it due to customized interval (I have kept the activity set interval timer to 1 to 5 minutes) to speed up testing. OR "Activity set inputs" or "Max activity count"?