Plutonium

I am having the same problem too
since i downloaded the new plutonium update me and my friends have been unable to play with each other
we used the hamachi app for a long time and since the release of the new update it shows to me and them the "incompatible UI"
i tried checking everything I could but couldn't get a fix
I saw that many other people are having the same error, glad it isn't just me, and I saw a post with the same name ("incompatible UI") where I saw that a staff member would release an patch for it, that was 2 days ago and I still have the same error ever since
id be glad if you guys fixed this since I love zombies and I wanna be able to play it with buddies