I have a UCX connected to a Windows 10 PC using firewire which handles both audio and power to the UCX.
The UCX powers up for use as soon as the PC is turned on.

In the past week the UCX has stopped initialising/powering up when the PC starts. The screen display remains blank and no LED lights come on. Thus, no audio on the the PC for any software.

The workaround is, before starting the PC, to manually initialise/power on the UCX using the DC-power supply switch (normally only required if you connect to the PC by USB).
it powers up straight away. 
Once the PC start-up button is pressed and the PC powering up, the DC-power to the UCX can be safely switched off and the unit remains happily powered by the firewire connection.

This started happening following a MS Windows 10 update which may or may not be coincidental.

Anyone else noticed similar issues with a UCX or UFX?

thanks.