Switchboard is a complicated application with many moving parts, while we strive to maintain a smooth user experience, sometimes things go wrong. This article describes how to clear cache & cookies from just Switchboard without interfering with the rest of your browsing history.
This article is made specifically for Google Chrome, which is the recommended browser for Switchboard, however most browsers should follow a similar process.
If the steps described do not match what you see in your browser of choice, please refer to this article from PCMag!
Click on this icon next to the URL
You'll be presented with this widget. Here, click Cookies and Site Data
Now, Manage on-device site data
Then click all the trash-can icons here
Finally hit "Done" and refresh the page!