Hi
I think this is a Windows problem, rather than DisplayLink. I've found this thread about it, but not the most useful answer:
https://answers.microsoft.com/en-us/...5-a540aee17b53
I suspect it is connected to the Scaling %age level set and resolution used and the combination you have is exposing a weird bug in Windows. I'd play around with the scaling and resolution levels to see when it goes away and what fixes it.
Wim