Modpack version
1.78
Issue
When pushing the "crystal cell from the mod ember" upwards with a piston, you duplicate the item. WHen you break the upper cell you see that the bottom one is missing the middle block. Both cells can be mined to obtain the cell (so duplicating the block).

Thanks for the report. I thought I had fixed that issue in 1.78 ^^'

I found another issue regarding pistons and the crystal cell.

I did the same thing as above, but then in a different setup, see picture (when I pushed it upwards there was an extra block. I left it out so you could see that there was a machine core). After I pushed the controller upwards, the server and client crashed.

I think making those block immovable by pistons would solve both problems, and it is not like that there would be an application that requires them to be movable by pistons. (other then trying to get the cell higher because it is in the way)

Luckily the world did not break, but im gonna stay away from pushing multiblock strucures xD.