there is reason for that. If you have turned option Auto reservation on, that will create appointment at moment customer select time on calendar. If that user doesn’t finish appointment creation that reservation will be deleted from database at some point leaving that number empty. 🙂
Later I noticed that my calendar (still mine) had extra empty reservations almost for the same time. I do not know if the problem was in Google Calendar app or the plugin.
If you are in Google Event, your primary Calendar will have the same Appointment. I guess that you are doing sync with another calendar that is shared.
Nikola you could close or resolved this question because your solution worked. It is resolved. Now my appointments are regenerated new appointments by increasing by one.
Hi, thanks I will do that 🙂