Grade Sync Error - response.body.filter is not a function

[childsg]

I'm getting this error when I try to sync my grades.  I've used Canvas for a number of years and have never had a problem like this one:

I get to Stage: 8/9 - Post Submissions, and then it says "Status Failed"

When I click on Failed, I see - 

Error

response.body.filter is not a function

I have no idea what that means.  There is no option to download a log.

I have to assume this issue is preventing grades from passing over.

Somebody help.  Please.

[rickettsh]

i am getting the same error only for one class... did you ever get an answer on how to fix this? everyone i talk to has no clue. 

[henleyt1]

I too have this error affecting one of my four classes. Everything was syncing fine to Skyward until the end of September. Now, I am getting the response.body.filter error.

[henleyt1]

I was able to solve my sync issue! I synced only three assignments at a time. I discovered an error with one of the assignments. I had given a student a 1000 instead of a 100. I changed the grade and the sync occurred with zero errors.