Tiny Death Star Mission- Build One More Of Any Level(s)

I don't know if this is a bug or by design, but I found that the "Imperial Items Missions" seem to be based on the actual level, not the item type. So if you needed eg "10 Defense Grids", and you use a Level Mover to swap in the Interrogation level to where the Turbolaser laser was, that mission turns into "10 Rebel Secrets". So you can swap in levels that you already have high item counts for.

However, the reward for completing the mission appears to change accordingly (it would decrease in the above scenario as Rebel Secrets are easier to acquire).

NOTE: This has been changed so that the mission is attached to the item, not the level. Moving levels no longer changes the requirements.

So I just couldn't resist and built a 3RD service floor and it finally let me collect my credit. The mission said only 1 level but it took 3. Thanks for the help guys