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Shannon ZdanowiczShannon Zdanowicz 

Trailhead Unable to check challenge Customizing compact layouts

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: HPPZLBTE
Vijay NagarathinamVijay Nagarathinam
Refer the below link,

https://developer.salesforce.com/forums/?id=906F0000000BWqaIAG
Shannon ZdanowiczShannon Zdanowicz
I tried that with no success
Shannon ZdanowiczShannon Zdanowicz
I am still unable to get this challenge checked.   I have tried a new developer forum but the same response is still provided. 

If you select Launch Developer Edition button it still launches my original dev environment. 

I also tried deleting everything and starting again.    
Shannon ZdanowiczShannon Zdanowicz
There were 2 record types,  had to remove one