This has happened in 2 different Dev orgs. Posted a question about it earlier this week, which seems to have disappeared. I cannot progress through the Trail as I cannot get past this setp.
Error message:
Step not yet complete in mwgillespie@crmatraining3.com
There was an unhandled exception. Please reference ID: AFUMVWOD. Error: Restforce::ResponseError. Message: 239: Dashboard state conversion failed: null RESPONSE: [{"errorCode":"239","message":"Dashboard state conversion failed: null"}]