Shortcuts for some features do not work when I upgraded to version 5

Hello,
I have defined a shortcut for libre office draw for the connector tool. I have chosen ctrl+D. But when I press these keys nothing happens. I have changed it ti f9 or some other shortcuts, but it doesn’t work. The same shortcut was working in libre office draw 4. When I upgraded to 5 no shortcut works for connector. I have defined ctrl+e for elipse , and this one works fine.
Thank you

Just tried in LO v5.1.2.2 using Linux. Assigned to Ctrl+D and worked fine. You didn’t specify your version - 5.0.x or 5.1.x (not just 5 - could make difference) nor your OS. Do you have any problems selecting connector from toolbar?

works fine here as well, double-check your configuration.

Thank you. I was trying to modify Drawing > Connector 's shortcut.