An existing report stopped working after a user account was deactivated. I've updated the Deliver this report with the Access Rights of: section to my user account, but the report is still not working. Are there other updates I need to make to the report?
there are two steps you need to take: sounds like you have taken one step and not the other. This help article is a good guide to both.
I created a service account that has admin permissions that is used for this type of thing. It's not a real person so they will never be deactivated. I use the same account for all my Fusion automations and service email reminders.