Hi,

I'm currently working on the App Customization Specialist Lightning Superbadge.
I'm stuck on Challenge 4 with the reported error of:
 

Challenge Not yet complete... here's what's wrong: 
The 'My Top Volunteer Organizations' report is not sorting by the correct field.

However, I have summarized the shift hours and the report is sorted by Sum of Shift Hours, as seen below:

Report Builder:


Report:

Could this error description be incorrect and misleading?
If so, what else might be wrong on this report?
(Am I even correct to believe it is a problem with this report?)