This is a known driver issue from Intel. Don't wait for an official downloadcenter release, these driver are usually outdated as hell. The current is 4 months old. Try this and report back: Station-Drivers - Intel HD & Iris Graphics Version 15.33.14.64.3412
It is unfortunate that Intel users are often forced to use OEM drivers but this is how Intel works, their release periods are not competitive compared to AMD and Nvidia. Sounds hard I know but this is reality.