I have a flow, which when ran as the System Admin, works perfectly.
When I run it as a non admin, it doesn't and I get:
An unhandled fault has occurred in this flow An unhandled fault has occurred while processing the flow. Please contact your system administrator for more information.
I have ticked Flow User on the user, and also ticked Run Flows on the profile
They have Modify All on all custom objects and Delete on standard objects
Ideally I want to debug this as the user to see what's going wrong, but I don't have the option to when logged in as them, and can't see a way to do this while logged in as Admin