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Nick VerschuerenNick Verschueren 

Error ID UXHPPPDB in checking challenge

I'm doing the Lightning Experience Reports & Dashboards Specialist Superbadge and all was going fine, did a big part of the challenges, and suddenly while doing the dashboard, I get this error and can't seem to get past it....

"Challenge Not yet complete... here's what's wrong:
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: UXHPPPDB"
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Is there a way to fix this without having to start all over again in a new playground?
Best Answer chosen by Nick Verschueren
Sebastian ChristowSebastian Christow
I had the same problem. I have tried 4 times and finally worked.
S.

All Answers

SwethaSwetha (Salesforce Developers) 
HI Nick,

The error is similar to GACK ID in salesforce.Most of the times, these go away when you try the challenge in a new playground or keep trying multiple times.

If the error still persists, recommend that you reach out to Trailhead Support team so that one of the Engineers will get in touch with you and assist further.
Support Link: https://trailhead.salesforce.com/en/help?support=home

Please mark this answer as best if it helps so that others facing same issue will find it useful. Thanks
Sebastian ChristowSebastian Christow
I had the same problem. I have tried 4 times and finally worked.
S.
This was selected as the best answer
Nick VerschuerenNick Verschueren
I just went back to it a few weeks later when I again had the time for trailhead, and it worked fine the first time arround, without changing anything