Thank you for your note.
From what I understand you need to do Is Set in the context data setting instead of contains for this rule to work.
Please try this and let me know if it works.
Thanks for replying.
I was able to know what Context Variables has.
Is there any way to get events values on Processing rule condition setting?
Thanks for reaching out.
The Context Variables list contains all variables that were sent to the report suite in the previous 30 days.
For more, please see these two docs below: