I’ve been using Crossover on Leap 42.3 for about a year running MS Office 2010,
mostly so my wife could use Outlook and avoid Windows viruses in email.
The only issue I have is re-sizing the MS windows dynamically.
Anyone else using Crossover on OpenSUSE ?
I’m also using crossover to run office 2010 and having the same ‘issue’ as you in KDE/Plasma.
With GNOME I can resize the windows without problems.
But it’s not really a problem for me because I run ms-office with maximized windows anyway.
Sorry that I can’t help you to solve the problem.
Operius.