Multiplayer hosting Problems with Snapshots

Me and my friends use this program called Evolve, an easy port forward program that can host a lot of games for people who are trying to connect with friends, to host servers with each other since we live nowhere close enough to host LAN servers, and any version before the snapshots works just fine, but the moment we try hosting on snapshots we get black screens, connection errors, weird color pallets and a lot more.