Recent Mac log into issues

Recently I have not been able to sign into 2 important systems that I access on a regular basis: my home MacBook Pro and my work iMac. 

Issue: I enter my user password on the login screen in a Acronis remote session and it is not accepted.

NOTE: Both systems have been upgraded to macOS Ventura 13.0.1, before this update, remote access to these systems for perhaps years has worked without issues.

I reproduced this by attempting to sign into my Mac mini, also running 13.0.1, same problem.

Now get this: the password on my home MacBook Pro and my work iMac are different *but* both start with an upper case letter, so, in my testing I:

- typed the first letter on my MBP keyboard itself, then typed the rest of the password on Acronis and I was then able to remotely sign in!?

- then changed the 1st letter of my MMP password to lower chase and I was then able to sign in entirely via Acronis!?

Well, I didn't want to mess with my work user password, so I left that as is. I now need to use another method ( not Acronis) to sign into my work iMac.

As for my home MBP, I have set my password back as before and I can no longer sign into it via Acronis.

Has anyone else had this issue?

Acronis support, are there issues with macOS 13.0.1 your working on?