Reproduction steps
- Open a terminal window in your Guacamole client (which is able to insert clipboard-content by just a right-click of mouse)
- Copy some text from another window
- do not select the Guacamole window, but right-click with mouse into the terminal window
The clipboard pastes old content
Workaround
- Click into the Guacamole window with left mouse
- Wait 1 or 2 seconds
- Right-click with mouse --> now the new clipboard content will be used