Some of you may have recently been receiving an error message when trying to run a Budget Summary report. This error has been recognized by our development team and a fix is currently being rolled out. I don't have a specific time when the fix will be deployed, though I'm assured it will happen soon.
In the meantime, I can recommend a workaround that will allow you to sucessfully pull this report:
Þ Expand Customize this Report
Þ Move 1 or many Accounts from available Accounts to Selected Accounts
Þ Click Run Report
I will post back to this thread once the fix has been implemented.