Sub accounts unable to create forms?

So I have set up a sub-account so that another employee can create forms on behalf of the organization and they are being told they cannot create more than 5 forms?  Is this by design or am I missing the meaning of a sub account?  I have their permissions set to share all forms and have full access.

Please note that sub-user accounts cannot create forms on their own account unless they already had an existing account that has other forms created prior to being added. 

If a Sub-User wants to create forms, then they must first click on the Assigned Folder of the Main Account (Parent) so that it is activated. Then, he'd be able to create a form inside that Folder.

You can check the full guide via the following link:

How-to-Share-Forms-with-a-Sub-Account-User

If the issue persists, please let us know.