Ingame-Flickering Mac Pro Retina 2013

Hi Blizzard-Team,

since two or three weeks (an update), I have an issue on some maps with flickering at special positions. My hero, minions, enemy heroes are flickering especially at Blackhearts Bay at the bot lane near the first towers, the bridges on Dragon Shire and some spots on Sky temple. On other maps too. Maybe you can help me? I already changed graphics from low to high, it doesnt work.

Mac Pro Retina 2013
Intel Iris 1536 MB
2,4 GHz Intel Core i5

Edit: one Month later no reply from you. Thank you for your support - gonna uninstall this game after playing since beta.