Note from Admin, please do not double-post about this issue in other threads.
If you have not done so already, I would suggest using the DisplayLink End-User Cleaner tool -->
https://support.displaylink.com/know...tool-for-macos to completely remove the current version of DisplayLink Manager and then perform a fresh install of the latest version of DisplayLink Manager available version 1.11 -->
https://www.synaptics.com/products/d...ownloads/macos
If that does not help resolve the issue, then I would suggest reporting the issue to DisplayLink directly by following the process outlined here -->
https://support.displaylink.com/know...to-displaylink