I am starting to use subassemblies, but I can never attach them to my main assembly. I am trying to do a geostationary network and launch all satellites in one launch.
The bottom of my subassembly is a terrier engine, and I want to attach it to a radial decoupler. If I pull out a terrier engine alone, I can attach it to my radial decoupler no problem. But when I pull my subassembly out, I cannot attach it in the same method. the only spot I can attach it is the top of the probe core, which cause a ton of interference on other parts.
Am I missing something when creating or pulling in subassemblies? All my attachment points on the subassembly (including lets say a docking port) do not attach to my main assembly and remain red/transparent.