Display -> Display Resolution doesn't stick in Windows 10 between reboots

Hello:
I have a MBP 16" which I use with an old Thunderbolt display. I use the laptop screen & the external display at the same time.
The graphics resolution setting is set to Best for external displays.
The problem that I have is that I have the Scale and layout set to 100% (this sticks) but the Display Resolution always gets reset after I reboot the VM to 3584x2240.
I like to set it to 1680x1050. I am kind of getting annoyed having to to set the display resolution every time I start the VM.
Any ideas why windows doesn't preserve this setting? Is it enforced upon it by the parallels configuration?

Thanks!

 

Hello, please check this KB article for the possible solution and let us know if it's not that case.

 

Yes - this fixed the issue. Thanks!