Next Experience, Navigation, and Access ​Task

[JemicaJ]

I'm trying to validate the task.  Error message: the validation has run into an error, please check that the instance is running and that you set up the task exactly as instructed. 
Instance is Running, I followed all the steps, Impersonated the Platform User, Pinned the All menu, Navigate to Self-Service Knowledge, Explored the homepage, and Favorite the knowledge module.
Please see screen captures and advise. 

[lotiko]

Indeed, "Platform User" must be selected as user (NOT a random user in the list), so make sure to type 'Platform User' when selecting the user you want to impersonate .   See picture

[balogunayod]

This just solved the problem because I was having the same issue before. I selected a random user instead of "Platform User" but after I selected the "Platform User" the process was successful.

Thank you very much.

[JaypalK]

How do you know who is platform user from the list? I am not able to see that option for me. 

[JaypalK]

I tried multiple times and impersonated different users, did the "Pin", Added "Knowledge" into Favorites, per instruction, did Ctrl-F5  but having same problems. 

I even deleted and recreated new instance but it keeps saying, its "Failed"