Superbadge Business Administration Specialist

I have the following error:
Challange 6:
Build a space for collaboration Create and configure the collaboration space based on the business needs. Use the collaboration functions to create the two described posts. 

Error:
Challenge Not yet complete... here's what's wrong: 
Couldn't find the defining details about this Chatter group, the Product Support Specialist webinars, and where to get additional information about Salesforce.

Looks like Salesforce Trailhead has an issue with the badge... I have tried this in a Trailhead Playgroud Org,
It seems from the error that Trainhead is trying to validate chatter Group:  Product Support Specialist  webinars which is not in the requirements

Requirements suggest we create Residential Sales Product Collaboration.​

Anyone with any input will be greatly appriciated :)

Quick Start: Process Builder

4. Test Your Process

 

I created the Process Builder as explained in steps 1-3. When I changed the billing street on the Grand Hotels & Resorts Ltd, the mailing address did not change in Mr. Tim Barr's contact record. I clicked the Verify Challenge button and it accepted my work as completed, even though there was no change in Mr. Tim Barr's contact record. What's going on?