Getting as far as clicking on 'open in quip' button....choosing the 'sign in with salesforce' option takes me to our employee login page (wrong login for trailhead playground). Have tried with private/incognito windows and in different browsers. Any tips on how I get quip working in my playground?

Getting as far as clicking on 'open in quip' button....choosing the 'sign in with salesforce' option takes me to our employee login page (wrong login for trailhead playground). Have tried with private/incognito windows and in different browsers. Any tips on how I get quip working in my playground?