Please try this.

1.       Open the site in SharePoint Designer. Go to  pages (Workspaces).

2.       In the tree folder list on the left, right-click the page (Workspaces). that other users cannot see.

3.       Select Properties and switch to Security tab.

4.       Click the link “Manage permissions using the browser”

5.       Check the permissions and give proper permission to other users.

6.       Check if other users could see the page or not.