Buttons after reboot

Hi!

See screenshots, please.

Description:

1. Before reboot I edit button to "C" (close only). Go to reboot.
2. After reboot, when panel loaded I see 3 buttons (expected 1)
3. I go to settings.
4. When settings opened, buttons auto-updated as wanted. (1 button only)

Please, fix it. I expect one button after reboot.