No science pack after rocket launch when item in inventory

[MimigaKing]

I just been messing about in creative mode and I noticed you could put a random item in both slots of the rocket silo. So I put a satellite in both slots, the one you should put the satellite in and the other one name "Rocket result Inventory".

I got 1k science packs if there wasn't anything in the inventory prior to launch but if I put something in there before launch, I didn't get any science packs.

[Rseding91]

That's by design. You need to make sure the result inventory has room.