Unable to view all projects in Project Center 2016 on premise

I am quite familiar with SharePoint but not Project Server. Using Project Server 2016 on premise. Currently logged in as Farm Admin which is also site collection administrator of PWA but when I open PWA site and click on projects, then I only view a few projects while other users see a long list of projects.

I am talking about project center where all projects are displayed.

There is a user let's call him "user1" which is able to view all projects. I went ahead and added this Farm Admin in same SharePoint groups as that user but still can't view all projects.

Then I went into PWA Settings --> Manage Users and there I assigned same groups as "user1" but still problem remains.

From where project center is reading permission? Could it be some custom permission defined in SQL Server table?