Today's win10 pro update does not come out of sleep mode properly on my Surface Pro 4. Rebooting takes care of the issue. Anyone else seeing this issue?
2017-06 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4022716)
Update ... Disconnecting & reconnecting the Surface Dock brings the screens back. I updated the surface dock firmware to v2.1.15.0 which did not resolve the issue. While not ideal, it is a work-around.