Another piston bug nukes my grid to space [with video] and hinge not transferring items issue

So now that the previous bug where pistons would be glued to ground has been avoided somehow I made the rover rotor/piston/hinge miner operational, and it was great, but it turns out hinge with a conveyor on it doesn't transfer ores from the drill, i have tried multiple conveyor variants, including sorter, but it just doesn't see the grid as connected. placing the drill directly on hinge, though, works just fine (without a conveyor) also, there is enough power and all blocks are on.

Now there is the second thing, i fiddled with some timer blocks, pistons, hinge and rotor, and everything was working just fine, i returned everything except the piston that was basically elevator (basically just ramming the ground with very low force, not connected to any other active blocks) to resting position, and when i copy my grid and paste it - it just nukes away, no matter if its in space (came to space just to try if its related to gravity/voxel, but its even more spectacular on earthlike, really), land or anywhere, really, I have it saved, but i cant fix it because it instantly takes off after pasting. The original design was standing still in my older save until i quit to menu and loaded the game - then it got nuked the second i loaded the game - got to see it fly too. The still design in the video is not the same blueprint - its the previous version, it pastes in just fine.