So apparently trying to place ME Dense Cable - Blue on a Block of Coal Pillar crashes clients. Haven't tested with other colors or pillars and at this point I don't want to. I'm assuming it's trying to lay the cable over the pillar in the tile-able pattern that FMB allows. Just thought someone should know. It made me giggle.
There is no crash-report. It's a in-game crash. the boot message is 'Invalid server error' I say leave it and let us prank each other. :> All you have to do is join the server again. Takes 5 seconds.
Changing to solved because it's really a non issue. If it comes up again and causes server crashes I'll let someone know I suppose.