I also am experiencing this issue. I have the following setup:
- Dell D6000 Docking station
- Planar PXN2490MW Monitor
- Planar PZN2410 Monitor
MacBook Air 13" M3
DisplayLink App shows only "No Monitor" and the other Planar but not my Macbook display. In Mac Display settings only 1 Planar and Mac display shown.
I've tried power cycling "No Monitor" display several times to now avail.