Mac Catalina, cannot log in (form mangled)

I’m installing latest Mac client on a brand new Catalina
On startup, after I insert the server hostname, the blue background of the login form is displayed, but after less than 1 second, the windows goes blank except for a 10px horizontal blue line

Has anyone tried logging in after upgrading to 2.6.4? in my old mac I progressively updated to the same version, but I never did a logoff.

Thanks,
Angelo.

Good news

I download version 2.6.1 and I was able to login

If you see such problems directly after an upgrade, please report this here:

Thanks, in fact I found issue #1888 already reported