Fiori Elements Object Page - Table Create Button missing

Hi guys,

i created a list report with object page via fiori elements. The objects page contains a table with items. Unfortunately the create button for new entries is missing. I am using a OData Service with implemented methods (no cds view) and local annotations in the frontend. I have been searching and debugging for ages, but I can't get it work.

List Page - List of employees

Object Page (Delete Button is shown, but no create button!) - Projects of employee

Due to sap documentation i need to define a "creatable-path" on the navigation, that points a attribute of the root entity and I need to set this value to true in the data. I did this already but its not working.

Help would be highly appreciated.

Thanks and regards

Chris