I experience a blank screen when I run a particular flow from flow builder. In my sandbox I am able to debug the flow but unable to do so in the production org. When I click on run or debug I just get a blank screen. I have the system admin profile and ensured I have the following:
"Run Flows" system permission option on a profile/permission set.
"Flow User" option on a user record.
"Manage Flow" system permission option on a profile/permission set.
The flow I have created is to mass transfer all opps from a particular user to another.