So I updated my 2 computers the other day and I didn't check it right away but upon trying to use Multiplicity the window comes up saying unable to connect. It also states that it appears the primary and secondary are 2 different versions, which isn't true. The only thing updated was my windows 10 Home 22H2 Build 1904.6216. This is where it gets odd. I tried the test connection and it is stating that is able to successfully connect, upon further testing... These are 2 windows 10 computers that get updates roughly the same time as each other, I don't always reboot them at the same time. Secondary computer is 22H2 Pro Build 19045.6216.

The funny thing I just found when trying to diagnose this as I had to have both keyboards and mice on my desk, I switched my secondary monitor over to HDMI mode(secondary computer) and I was moving my Primary mouse around and noticed it was working my secondary computer and was confused. I can move my Primary computers mouse from my primary computer and move it all the way to the right and it moves into my secondary computer after passing by both the primary and alternate screen.. so.. technically multiplicity is "working".. just not as intended? Reminds me of our HD KVM's at work with computers on different networks but PC's are plugged into the hardware kvm's. I checked firewall of windows and its all open on both machines. There was a point where it was saying the encryption keys were different but that has gone away. While its nice that I can actually control both computers with one mouse/keyboard, having to switch the inputs around is annoying and kind of wastes the good thing about Multiplicity.