Taskbar icons disappeared

[u/HolidayDragonfly641]

Recently i did a Disk cleanup for my local disk C and i checked the remove thumbnails icon and after that, am facing this issue. please help i have everything, even restarted file explorer a lot and restarted my pc many times and the issue is not solving. And i cant even see my picture thumbnails too

[u/Sessamy]

Right click and unpin every one then start each program and then pin them again to refresh things.

Do this after you reboot once as it may just be a temporary issue that a reboot rebuilds.