Working fine here on the latest 5.0.0-ms-2 build in the Microsoft Store.
What you could try is, to reset the Store App.
Reset the Store app
- Open the Microsoft Store app .
- Press Windows Key + X and select Run .
- Type in wsreset .
- A black MS-Dos windows will now appear for a few seconds.
- Wait for it to disappear and the Store app will automatically open.
Note : By resetting Windows Store app you won’t lose anything that you previously bought or downloaded. This will only clear the cache and refresh your library.