Apologies for the delay in getting back to you. Have you already resolved the issue on your end? If not, please try these methods to have your icons reappear.
Method 1: Check if you're on tablet mode.
Several users have reported that their devices were in tablet mode and have restored their icons back by turning it off. Select action centeron the taskbar (next to the date and time), and then select Tablet mode to turn it on or off.
Method 2: Create another user profile.
Sometimes, user profiles get corrupted and show these kinds of behavior. Let's make sure that yours is not. Follow these steps
- Select the Start button, then select Settings >Accounts>Family & other people>Add someone else to this PC.
- Enter a user name, password, password hint, and then select Next.
Update me if there are improvements.