I am experiencing a periodic issue with the dock. When my MacBook goes to sleep, it fails to bring up both displays. The monitor supported by the dp connection starts without issue. The 2nd monitor is powered by the USB-C to HDMI pluggable cable. It comes up with a snowy background. Reconnecting the thunderbolt cable to the MB Pro brings both monitors on-line.
I am using all cables with the unit including the short usb-c/thunderbolt cable.
Let me know what steps I should take to troubleshoot the problem.