Estimation feature is not exist in Project Settings > Features

[mome]

Hello! 

I am stuck with a dumb problem.  I try to enable Estimation for my team-managed project using documentation: https://support.atlassian.com/jira-software-cloud/docs/enable-estimation/ 

But there is no Estimation feature in Project Settings > Features list. 

And I have no idea how to add this feature to the features list to enable it. 

Do you have any idea how to solve this issue?  

UPD: All that I need is only to add estimation and log work fields to tasks in my project. 

[mome]

Finally, I completely remove the project and create a new one. 
And now the Estimation Feature exists in the Features list. 

[Mikael Sandberg]

Hi mome,

Are you using a company-managed project or a team-managed project? If you are in the project and look at left-hand bottom corner it will tell you what type of project it is. The estimation feature is only available for team-managed projects.

[mome]

Hi Mikael, 

I use team-managed project. 

[Mikael Sandberg]

Would you mind adding a screen shot of what you see under Project settings > Feature?

[mome]

It seems kind of a bug or some miss-configuration. In the new one project, the problem is gone.