That does help to clear things up Debbie. So the concern is not about the report settings being changed but instead the records being changed? In that instance there is not a revert functionality. Records being moved in a Kanban report triggers edit to the records themselves just like opening a record and updating it via a form or Grid Edit so currently there is no revert functionality as they can trigger off Automations, Notifications, and permissions changes as soon as a card is moved for a responsive workflow. Any records moved are updated and would need to be returned to the right status just like any record change in Quick Base.
If you feel a record revert option for Kanban would be a beneficial feature in Quick Base, I would encourage you to submit feedback regarding this via our Feedback Platform - UserVoice - Which can most easily be accessed from the My Apps page in Quick Base by clicking on the orange Feedback tab or at
http://quickbase.uservoice.com . Our product development team working on Kanban is still actively working on future enhancements based on customer feedback. I have put this into our internal feedback but a user voice also helps to track how may other users share your need visibly, and you can include a link to it here in Community so others that find this post and share your concerns can put their vote in as well.