Resource Converter Bug????

[Enigma]

Had the planet building large fighters. It was launching them and I would move the fighter group to a collection world every couple of turns. The planet can only produce about 4 fighters a turn so no danger of running up against my limits. We are on turn 77 of this particular game and fighters are largely useless right now, but by moving a couple of groups of 100 to a warp point they give a little boost to warp point defense. They have also been useful for deep penetration raids. (Open Warp point send the carriers through, launch fighters, retreat carriers, Close Warp Point - fighters attack planets).