It's not a Plugable or any dongle issue. I don't use any other devices just the built-in Thunderbolt connection. I have the same issue, every time when I close the lid or log out, I need to unplug and replug or quit and re-open the DisplayLink app. Sometimes one of the external monitors is just 'playing' dead, with no picture, no sound. The next day nothing changed and all the monitors just worked as expected.....
I am on a 14" M1 Pro and using DisplayLink Manager 1.5.0 (Build 58.125). I tried to update and download the latest version but the installation is running into an error all the time. No error code or no concrete info just 'The installation failed. Contact the software manufacturer'.......
So it's something with the software itself, not dongles or other hardware.
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