Build an Account Reassignment Wizard-Implement the Flow with Visualforce
http://trailhead.salesforce.com/project/flow_reassign/flow_reassign_implement

'Challenge Not yet complete... here's what's wrong: 
Couldn't find two users in your org with a 'Salesforce' license. Check the instructions'

The instructions directs me to add two users in my developer org. One is assigned Salesforce License and Standard User profile. The second is to be assigned Salesforce Platform License with Standar User profile. However this is not possible as the only option is the Standard Platform User profile.

URL: https://trailhead.salesforce.com/project/flow_reassign/flow_reassign_implement

Project: Build an Account Reassignment Wizard
Unit: Implement the Flow with Visualforce

As per the challenge, assigned 2 users with Salesforce license and third user with Salesforce Platform license. However with Salesforce Platform license the only available profile is Standard Platform User which gets applied. I believe that is also the reason I am unable to validate this challenge.

I am unable to validate the challenge for "Implement the Flow with Visualforce" in the new "Build an Account Reassignment Wizard" module.

I keep getting the error message "Challenge Not yet complete... here's what's wrong: Couldn't find two users in your org with a 'Salesforce' license. Check the instructions".

The instructions say to give one user a Salesforce license and the second user a Salesforce Platform license. I tried to give the second user a Salesforce license, but there is only one free Salesforce license as the environment only comes with two and one is automatically assigned to the created administrator account.

Can anyone tell me how I can resolve this issue?

I have tried the recommendations from other posts on this topic. I have created a couple of new DEs to try this out in. I set up the permissions correctly for my account. I added the fields and attachments to be encrypted but when I go into a contact or case the fields are not encrypted. I double-checked to make sure that the System Administrator does not have View Encrypted Data checked and all permission sets assigned to my user also don't have that option checked but the fields are still not encrypted and the trailhead is not validating, I keep getting the error 'The contact mobile phone field does not appear to be encrypted.' I also tried adding new contacts and cases and editing existing ones but still not encrypted.

Build an Account Reassignment Wizard-Implement the Flow with Visualforce
http://trailhead.salesforce.com/project/flow_reassign/flow_reassign_implement

'Challenge Not yet complete... here's what's wrong: 
Couldn't find two users in your org with a 'Salesforce' license. Check the instructions'

The instructions directs me to add two users in my developer org. One is assigned Salesforce License and Standard User profile. The second is to be assigned Salesforce Platform License with Standar User profile. However this is not possible as the only option is the Standard Platform User profile.

I have this field encrypted and there is data in there.

Please advise.