Hi there, cgpithie-gmail-c. If the expense pie chart has disappeared from your QuickBooks Online dashboard, it is likely hidden, or the dashboard view has changed.
You can usually restore it by going to your Dashboard and check for the +Add Widgets option. Mark the Expenses as checked, then Save.
If the chart still doesn't appear, try opening QuickBooks Online in an incognito or private browser window. This helps determine if a browser glitch or outdated cache is causing the issue. If that fixes it, you may simply need to update your browser. You can also use other supported browsers.
If you have additional questions, feel free to comment below.