not entirely sure how to reproduce, but it's happened twice now
i have two oil wells running and it wasn't happening before they were running, i suspect that may be part of it?
forge version 2772, Gadgetry version 1.0.0
log in question

edit: all i have meaningfully set up is in the following screenshot, i haven't touched the world aside from it.

Yeah I think I know what it is. I'll fix it as soon as I can.

Fixed, new release of gadgetry machines is being approved on curseforge to fix this.