Putty Embedded Sessions Lose Keyboard

I just upgraded to 10.5.3 today and there are a couple of problems:

I open an embedded putty session, then open another one or an RDP session, and when I go back to the original session, my mouse could highlight and paste but cannot focus on the session and so cannot type anything.

Also, the sessions are not closing properly and I keep getting the popup that RDM_cisco session already exist and if I want to overwrite it. My putty session is named "cisco"

I rely on putty because I can't find advanced logging settings in the native ssh client. I log by hostname_date_time in my file names. I've since reverted back to 10.5.2 and it's working as expected.