Hey, great mod, it's almost an essential for the server I run.

I've noticed an issue with the Mining nanites, though:

Either an Ore Hammer has been left on for a long time
-or-
The ship that was mining from that hammer runs out of power
-or-
The ship can't carry any more (possibly because of #2, and conveyors not working)

the server sim speed fluxuates wildely, down to nearly 0.02, every few seconds.

Deleting the offending ore hammer seems to fix the problem.

I do have the save made, and I will investigate the issue further.