@BarrySullivan
I think there is some issue with the OneDrive connection could you please try creating a new connection and then re-run the flow.
Open the flow home page --> Data --> Connections --> Click on create new.
Create a new connection for OneDrive/OneDrive for business.
Once you have the connection established go back to your flow and click on the three ellipses (…) on the OneDrive action card.
There you will be able to see your new connection under connections. select the new connection and save the flow.
Now re-run the flow and test again. This will resolve the issue.
If this information helps you, please hit the like button and mark the solution as resolved, so that it will help other users in future.