http://www.reddit.com/r/spaceengineers/comments/2xl6h1/massive_problems_in_multiplayer_with_lag_on/ is the issue im seeing on ours as well getting 60 fps with .60 simulation and getting massive interpolation lag as high as 90 to 100 all i cans see on the forums is its can be a near by projection into a rock or multiple projections all over left on this just started to day and im seeing some new reports on this issue showing up any ideas pc spec a6 runnign at 4.2 ghz dual core and 8 gigs ddr3 @1866 radeon hd r9270x