This wasn't so apparent before the last few patches, as advent AI players wouldn't mine too much. However, I've noticed a few... issues, I suppose, with clearing advent homing mines.
Basically, you send in a scout with minsweeping on. It activates the ability and goes towards a mine. It reveals the mine. This is, apparently, just outside of a Homing mine's lock on radius. The scout then proceeds to move forward to auto-attack the mine. This brings it within the mine's lock on radius. The mine promptly becomes invincible and rams the scout. Repeat until scout is dead, usually taking about 2 mines.
I cant really do anything about this, like make them keep their distance while bringing in longer range ships, as even with auto-attack off, scouts always auto-attack mines.
I'm not really sure how this could be fixed... Anyone else have some ideas?