Updating Dataset Gives an Error Message in Report and Dataset

Hello,

I uploaded a dataset to OneDrive - Business. In Power BI, I clicked "Get Data", then the Files "Get" button, then OneDrive - Business, selected the appropriate dataset, and then chose "Import Excel data into Power BI." Afterwards, I was able to create reports using the dataset.

When I make changes within the OneDrive Excel spreadsheet and click "Refresh" within Power BI, the Fields themselves update, but all graphics that reference a changed field display the error message "Something's wrong with one or more fields," forcing me to then delete the graphics and recreate them with the updated data.

What am I doing wrong? I thought Power BI would automatically refresh and incorporate any changes to the underlying dataset automatically. Any help would be much appreciated.