When I try to pin something to the start menu, the first item generally works. But when I try to pin a second one, the start menu freezes and after pressing the window key a couple times, it goes back to how it originally was.

After pinning the first item, I tried naming the tile group and again, the start menu froze and after pressing the window key a few times, the start menu goes back to how it looked before I started editing it.

I tried renaming one of the tile groups that existed right after I started Windows 10, and it seemed to work, but after trying to add some more items, it goes back to how it originally looked.