Have a problem with the 6.015 cloak boosting. It causes everything being cloaked to flicker in and out of cloak. Standing still, moving, through wormholes or not, doesn't matter.
i've attached a save where you can see this. Load the save, and go to the Gence system. There's a group of Spirecraft Siege Towers there, gathered around a Cloaker Starship. Watch, amazed, as they flick in and out of sight! Now you see them! Now you don't!
This happens for everything that gets cloak boosted, by any source. This was not a problem in 6.013.