Browser: Chrome 110
OS: Windows
Hi!
I saw that this bug was reported before but I tried all the solutions and I can’t populate post type content.
Attached photos
Welcome to the forum, and thanks so much for your report!
The way to go is still to search for a specific post, in your case, a “lesson.”
It might take a while, depending on the total number of lessons. That’s also why we don’t query all post types there by default, as it would significantly impact the performance.
Example with a “movie cpt post”:
Let me know if it works 
Best regards,
timmse