SuiteCRM 7.13.3 - Problems with calendar synchronization

Hello, good afternoon!
I am using the iCal integration URL to subscribe to SuiteCRM Calendar using Google calendar on iOS. The subscription is done correctly and the created events (calls, meetings and tasks) are propagated to Google Calendar; The problem is that, once subscribed, when generating a new event, it does not propagate to the Google calendar, the only way to see it is to delete the calendar and import it again. How can I correct this issue?

From already thank you very much!