Co-op friendly build
Bugs can be cute, some eat your strawberries and others won't let you play co-op.
So I pushed an old build that used to work fine in co-op.
To access it, go to McDROID properties in Steam, click the beta tab and chose the co-op build.
Make sure your friend also play this build or they won't connect to your game and let me know if this works here: https://steamcommunity.com/app/252970/discussions/0/2257935717970766341/
On another note, if you own a Switch or know someone who does, I'd apreciate if you shared the Kickstarter campaign with them: Switch Kickstarter
So I pushed an old build that used to work fine in co-op.
To access it, go to McDROID properties in Steam, click the beta tab and chose the co-op build.
Make sure your friend also play this build or they won't connect to your game and let me know if this works here: https://steamcommunity.com/app/252970/discussions/0/2257935717970766341/
On another note, if you own a Switch or know someone who does, I'd apreciate if you shared the Kickstarter campaign with them: Switch Kickstarter