Hi,

I am trying to complete Customize Compact Layouts chellange in trailhead:

• Create a new account compact layout
• Label: Mobile Account Layout
• Name: Mobile_Account_Layout
• Selected fields: Account Name, Annual Revenue, Phone, Type
• Make the new Mobile Account Layout the primary compact layout for accounts

but constantly the follwoing error pops out:

"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: WUUYFYAH"

I did it in trailhead playground and in DE but errors still persists. 

Please help.

BR,
Marcin