I was in a rated BG (Eye of the storm) and this bug happened with my mage. I could not attack anyone in the enemy team. It said “Invalid target”. Blizzard spell and Frozen orb also did not launch as it was supposed to. Instead of being able to direct it at a point using my mouse (I have the PVP concentrated coolness), it launched centered on myself. Needless to say the game was basically 10 vs 9 since I could do absolutely nothing. I just did a search for this bug and found it has been an issue that happens randomly since 2018. Just how long does it take for Blizzard to fix things? Sorry, but I am extremely frustrated by this.