Please make sure you attach the parts you want to decouple directly to the decoupler and then they will get detached too.
If this does not help, please send a screenshot or the drone file so I can have a look
When I activate the decoupler on any of my drones, instead of decoupling whatever is attached to the ship, the decoupler just falls off, leaving the attachment still attached and a small decoupler floating around in space. Is anyone else having this issue? I am on a Mac using version 0.2.4.
I think SetGene and Add Statuseffect are a bit buggy. When the night does not end, it just means an error happened.
I'll see if we can fix it for the next update.
However if you use the dev console we won't guarantee that the game works fine all the time