I'm encountered a weird issue with new Sitecore user accounts. I set their permissions correctly, giving them access to read, write, create, etc the content items/folders they need and the Media Library. When they user logs in and clicks any of the 5 nodes in the tree (or their children) the Sitecore tree/navigation will hide all other nodes.
So if they click an image in the Media Library, the Sitecore tree will focus on the Media Library and not show the Content, System, Templates, etc nodes.
I've tried adding every single role in my company's Sitecore system to a test user and that didn't change a thing, it still happens. Any thoughts on this would be greatly appreciated.