When you connect a monitor to the DP port of a hub/dock, and if the screen appears abnormal with colors like yellow, red, green, blue, etc., the issue may be caused by the connected laptop, HDMI cable, monitor, or hub/dock itself. 

Here are some troubleshooting tips that may help you locate and resolve the problem.

For laptops:

• Try the device with a different laptop that has a USB-C port and ensure that the C-port supports DP Alt Mode (display output) to see whether you can get a normal screen.
• Check whether the HDR mode is on. If it is on, please turn it off as the HDR mode will turn the screen yellow.

For HDMI cables:

• Try the device with a different DP cable.
• If possible, plug your DP cable directly into your devices and see if you get a normal display.

For monitors:

• Try the device with a different monitor.

For hubs/docks:

• Try with a different hub/adapter to see whether you can get a normal display.

If all of the steps above cannot help you locate and resolve the problem, please contact MyAnker Customer Support for further assistance. Make sure to briefly mention the tips you’ve already tried so that a solution can be provided faster.