Another week, still no fix, and you've somehow broken it more. As of my testing today, cannons in general appear to have lost their ability to use Target Subsystem. (Edit: I seem to have derped that test, they do still work, but turrets still don't.) And for a bonus, Plasmonic Leech no longer appears to inflict drain on…
Just posting an update, that this has not yet been fixed. I've tested it after each of last week's patches and today's patch, on the off chance it just didn't make it into the notes; as with last week, dual cannons can inflict Target Subsystem stacks just fine, but turrets do not.