Hey all! I have a Mid-2015 15" Retina MBP. Intel iris pro graphics along with the AMD Gfx card. I have graphics card switching enabled to help save battery life. It seems that whenever it switches from Iris to AMD my Mac freezes for a good 60 seconds or even more. But the weird thing is, The cards switch when im only doing simple tasks such as browsing the web. If i switch quickly between a few tabs, it freaks out and just freezes. I'm not quite sure what the issue it. If I disable switching the issue disappears. But i don't necessarily want to do that. Thoughts? I am completely up to date on all OS updates.