thank you for the detailed testing and good description of the problem.
We can confirm the observed behavior and work on it.
The problem occurs when a FullHD (1080p) resolution is used. We will provide a fix with a new version soon. Sorry, our testing setup only had WQHD+ (1440p+) Monitors.
When we fixed the problem, everyone’s beta testing period will be reset to full 30 days.
Just drop us a line with your serial, if you like an extended beta testing period in return for your helpful bug report.