I faced the same problem two weeks ago with the previous version of Catalina (I don't remember the correct number but was a previous on 10.15.4) and git (I use SSH to authenticate with the server). So I did a report to Bitbucket with a solution that worked for me after investigate more about the problem: https://twitter.com/di3goleite/status/1239596891471581189?s=...

Thank you about that clarification. Also your website seems to be down actually.