Implemented Crash Landing 3 - Strange bug?

hey, I started an island with my friend and we both left to go have dinner, and when we logged back in, it looked like someone had been there liveing in our base, there were extra sync shells and stuff, but some of our stuff was missing. what is going on?

 

Maybe your friend was online... Or the protection plugin was messed up for a bit.

 

yeah, I could still build, and neither of us died. we both had sync shells setup, when we came back there were 2 extra sync shells that we hadn't placed and our stencil table and tinker chest were gone

I know that my friend hadn't gotten back online because we were in a skype call together.

I logged in to check this morning, and it happened again, it seems like the back half of our ship is resetting to someone elses ship or something, I don't quite get it