Hey everyone, 

via the chatter my users create activities (mail.activity) model. Users can mark the activities as completed in the chatter as normal. Now I have the problem that if the user wants to display the open activities via the clock symbol, then entries with already completed (state=done) activities are also displayed in the list. Unfortunately, this becomes very confusing for the user.

I suspect that I have inadvertently removed a filter at some point. I only used odoo studio for the customizations.

Any hints on which action or in which view must the filter be set again? 

Thanks for your help and best regards

Joshua