On WordPress 4.9.8 with Pro 2.3.8 and Yoast 9.0.2
Yoast Readability works for 2 users but not the 3rd?
For the 3rd user getting
Not enough content: Please add some content to enable a good analysis.
All 3 users are Administrators and all Yoast settings identical. Set up a 4th test user and that doesn’t work. Is there some conflict between Pro and Yoast?