DP ALT Mode

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Occasional Visitor
For months I have been running two external monitors using DP Alt mode.
One via USB C port and the other with a USB C cable + adapter into a standard usb. After the last update this set up no longer works.
Individually both connections do work but when they are plugged into together one of the monitors will stop working and just show DP AlT mode unavailable.
Any suggestions? Could this be because of a bad update ?
1 Reply
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Hi,
you've posted your topic in Cortana community while it's about Windows.
https://techcommunity.microsoft.com/t5/windows-10/ct-p/Windows10