We just upgraded our Portal to 10.6 and we switched authentication from IWA (SSO) to OAUTH (Explicit Login). Using Connect 2.7.72 when I publish, as soon as I click on the Publish button, Connect opens the Publish Survey dialog, and as soon as Creating folder Info appears Error code: 400 Unable to create folder errors appears.
One thing I notice with Connect when I switch from one portal to another (Test to UA or UA to test), connect launches a browser with the html title SUCCESS code: and on the page it specifies:
Please copy this code, switch to your application and paste it there:
Not sure where to paste that code within Connect.