Default calendar not found for new users

When a new user is created, the system via the vtiger_calendar_default_activitytypes table creates default calendars for the new user, this configuration is saved in vtiger_calendar_user_activitytype. I noticed that when trying to change (for example the color) of a default calendar from this new user a message appears stating that the calendar was not found.

By deleting the calendars and recreating them the behavior is corrected.

How to reproduce the problem:

1. create a new user
2. log in with the new user and try to change the color of the default calendars
3. the error is returned
4. delete the calendar you wanted to modify
5. create the calendar again and try to modify