Challenge Not yet complete... here's what's wrong: 
The 'Total Vol Hours for Shift' field on the 'Volunteer Shift' record is not working as expected.
I am facing an error, though my formula seems to be perfectly fine.

Challenge Not yet complete... here's what's wrong: 
The 'Total Vol Hours for Shift' field on the 'Volunteer Shift' record is not working as expected.
I am facing an error, though my formula seems to be perfectly fine.

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?)

I'm struggling with the custom lightning component on this part. I don't have much background coding and am having trouble finding resources to help me achieve coding the lightning component. If someone could help give me some framework code to create a custom lightning component to hold a URL or direct me to a resource that help break this down I'd be very appreciative.