Since the update to version 2.8.53 (and it is still present in version 2.8.59) the special cursors, which are displayed in applications, are like inverted (see attached image)
The scenario :
TightVNC server 2.8.59 on Windows 10
TightVNC viewer 2.8.59 on Windows 10
The application used : Envisioneer (https://www.cadsoft.com/)
https://www.cadsoft.com/download-file/
But I think this must happen with other applications.
I was using before version 2.8.27 without any problem