Hi,

I'm facing a big problem in Odoo10 CE with calendar.
It's possible to create few records with subjects and save them but as soon as I reload the page or switch from calendar to list and back to calendar the calender is empty.

You can reproduce it with these steps:

1. open calendar

2. create few record 

3. change view to list

4. change view to calendar

5. your calendar is empty

Can somebody help me ?