M1 MacBook Pro, everything worked fine until Sequoia 15.2

[hollerbach]

Now my two external monitors both show up in DisplayLink Manager settings, but the system is treating them as one display - the red frame box shows up on the same display when i hover over one or the other. One display is blank, the other shows up. I can switch which shows up by clicking the toggle on-off switches, but there is no way I can get both displays on as extended screens. In MacOS display settings it only shows one single external display. TLDR my two external monitors either mirror each other or only one will display. Everything worked fine until I upgraded to Sequoia 15.2.