Has anyone else tried the Dell UP2715K 5K monitor? I have a 2016 Macbook Pro 15" with the AMD 460, and I can't seem to get it to work. I ordered a couple of USB-C to displayport adapters and it works fine in single stream and I can show 4K without issue. However it will not give me an option or even recognize the second adapter/cable so there is no way to get 5K to work. Any ideas? Thank you!