On some windows systems it appears that the WIndows May 2020 update affects parts of the Cubase GUI for example the:
Remote Device windows
BOth of these are coded to not have the ‘always on top option’
For example mediabay will also have the issue unless the ‘always on top’ is seleceted and then it will be o.k again.
Images are attached to show the GUI problem.
This could be how the windows update affets integrated Intel graphics or some other reason.