macbook pro works with dell docking station only in mirror mode

Hello,

For a few months I'm having trouble using my macbook pro 2019 13" with my dell docking station WD15 K17A (reg type no. K17A001). I can't figure out what has happened, I have the exact same operating system (macOS Catalina) on which it previously worked without any issues.

The problem is that when I connect it to my docking station, the two monitors are identified as one monitor in System Preferences and that they only work as mirrored screens. So in "Displays" I only see two monitors, the laptop's and the two which are identified as a single one.

I'm using the latest display link driver https://www.displaylink.com/downloads/macos.

I've also tried with a legacy version (just for the sake of it), but it didn't work.

Any ideas how I could solve this issue or where the problem might stem from?