Unable to switch between monitors since update to 12.3.1.20

Hello,

we have the same issue with the newest Version (DMRC) 12.3.1.20 to switch between 2./3. Monitors. 

You can click the button to switch to a secondary monitor, or the virtual monitor, but it just stays displaying the primary monitor

This issue was discussed 2 years ago with the Version 12.3.0.12 here. 

Does anyone else have the Problem?

Thank you

Martin