Note that the add to cart and download columns are blank. The zip and release note download links from the hotfix page are identical too.
Release : 20.3
Component : UIM - HUB
Known issue with SSO.
Click on the Name on Top Right corner > Logout.
Click again on the Name and click Login.
Paste the Solution URL and we should be able to see the files for downloading.
https://support.broadcom.com/download-center/solution-detail.html?aparNo=LU00907&os=N%2FA