Gray/shadow area appears on main display if DisplayLink manager closed

[nathancashion]

I'm using DisplayLink Manager (1.11.0 b28) with an Elgato Prompter attached to my M2 MacBook Air (Sequoia 15.3.1) along with a 32" Samsung M7 display. Both displays are connected via CalDigit TS4.

Everything works fine initially, but if connection to the Prompter is lost, the bottom corner of my main display will then show a transparent gray box or shadow, presumably of the dimensions of the Elgato Prompter.



This can happen due to a few reasons:
- I disconnect the Prompter's USB-C connection to the MacBook Air
- I quit and reopen DisplayLink Manager OR
- I stop DisplayLink screen sharing with the macOS menu bar item

This will show up on my external display if connected, but will also show on the built-in display of the MacBook Air if I disconnect the external displays.

The shadow area persists even once DisplayLink Manager is reopened and will only go away with a restart of the Mac.

I usually don't intentionally disconnect the Prompter other than when I take the laptop away from my desk. But, occasionally I will inadvertently quit the app or stop screen sharing.

Anyone else have this issue or know of a solution other than restarting everytime it happens?