So one of my GeoSurvey ships found Ruins in a moon of a Gas Giant, and then in close orbit of the Gas Giant was killed by a salvo of 36 missiles of unknown size.
Fast forward some time and I have a large task force in system to investigate, they approach the gas giant and detect a salvo of eight Size 24 missiles in orbit around the planet. I figured that it used to be a minefield with 9 mines, and one of the mines detected the survey ship and went off. To test this assumption the Admiral thinned out the minefield until only three remained, then approached. Closer, and closer, and closer. Finally the fleet was orbiting directly along side the mines. Time slowed down to 5 seconds a turn, but nothing ever happened. My fleet has large engines, large ships, and large Active Sensors, no matter what sensors these missiles have they should be able to see my ships, why aren't they deploying their submunitions?