DisplayLink keeps changing window positions
 

Hi,
I'm using DisplayLink on Mac M1 13" running OS 11.6, with an "ICY BOX Notebook DockingStation" HDMI/DVI, 2 external Monitors connected.
Everytime I start the Mac (Mac is just suspended, power of the icy box shut down, so "start" here means I power on the icy box and open the mac's lid) the windows on the external monitors have changed the monitor.
What was on the left is on the right and vice versa, at more or less random positions.
Any hints how to solve this?

- Henning