The problem was panel "Application Menu Bar" on another screen.
When I disconnected the screen the menu was still hidden, so I think that the feature of adding app menu to the panel does not seem to work with many screens.
Jiri On 24/6/20 11:40 am, Jiri Kanicky wrote:
Hi.I also menu bar in all apps in KDE environment. I was not able to find the cause or how to get the menu back.Can you advise? Thx Jiri
