I have completed the following lesson: https://trailhead.salesforce.com/trails/automate_business_processes/projects/flow_reassign/steps/flow_reassign_find. When I completed the lesson I get the following error: Step not yet complete... here's what's wrong:
sObject collection variable 'User1_Accounts' isn't properly configured. Check the instructions.

Attached is the lesson and my setup. They match so I don't know why I get the error.
My flow is called reassign accounts.


Appreciate feedback to fix and resolve flow problem
Fred Flores