Trivial Ghost drone can't construct vent capture units

[SimianC]

I wanted to see if a ghost drone could set up the geothermal engine on OSHAN. Ghost drones are able to find hotspots using the dowsing rods, pin them using the stompers, and dig holes using the power shovel. However, despite being able to carry the vent capture unit and construct it, when the construction process is finished the unit disappears entirely. 

I tested to see if this was also the case with glass tables, but it seems this is unique to vent capture units.

[sodly]

The vanishing bit is definitely the most annoying part. For the time being, though, you can get around this by dropping the vent onto the hole and using your crowbar-multitool on it; this'll construct it properly.