Buttons become hidden in Runtime when Active Network is enabled

Buttons become hidden in Runtime when Active Network is enabled

Dear Zenon Support team,

I use zenon 11. When I enable Active Network (Network → tick Active Network) and configure Active Server 1 with our PC name (hostname), then start Service Engine, some buttons on screens are invisible/hidden.
If we disable Active Network, the same screens/buttons show normally again.

Thank you very much for your assistance.

Regards