Yeah, this is not the only report of 15.3.2 being a problem.
I also have this thread:
https://displaylink.org/forum/showthread.php?t=69576
Not sure under what set of conditions 15.3.2 caused this issue for many people (maybe its a specific models?), but it is absolutely a real problem, that multiple people are reporting.
I have sent in a support bundle collection. I have received no email back from tech support though.
Please, this is a real problem, and I will do anything to help as well.
Cheers,
Greg