Brave wipes out cookies

I have a website: https://www.richardsilverstein.com

Brave appears to be wiping out the cookie for the website and forcing me to log back into it. It does this suddenly and often and for no clear reason.

Is there any way I can prevent Brave from doing this? Is there a setting I can configure so Brave will not wipe out these cookies and my sessions won’t be interrupted?

Brave version (check About Brave):
Version 1.0.1 Chromium: 78.0.3904.108 (Official Build) (64-bit)