Do Not Clear - Not Persistent

We recently gained a great new feature:

• Added the ability to create a list of sites that are exempt from the deletion of cookies when the browser is configured to delete browsing data upon closing.

Upon adding sites to this list the entries can be seen in two areas of the browser settings:

• Privacy & Services > Clear Browsing Data > Cookies & Other Site Data > Do Not Clear
• Site Permissions > Cookies & Site Data > Allow

Problematically however is that my list of sites, once created, is not persistent. In other words, after a browser close and restart my list is empty.

Following the suggestion of josh_bodner I tried creating my site list using a variety of domain naming conventions, such as:

• [*.]live.com
• live.com
• outlook.live.com
• http://www.outlook.live.com
• https://outlook.live.com/

To be clear, I tried each of the above one at a time. I would add a single entry, close the browser, and then reopened to see if that example was retained. In each of the 5 test runs the browser opened with an empty list stating "No sites added".

Extensions in use:

Bitwarden, uBlock Origin, Cookie AutoDelete, Decentraleyes, and HTTPS Everywhere

So, am I the Lone Ranger here, or is anyone else experiencing this?