xamgantt listbackedprojectviewprovider
i'm loading data in my xamgantt through a ListBackedProjectViewProvider, in which i defined custom views, tables and
columns. After the tasks insertion, the gantt shows always the tasks in cronological order, regardless of
the ordering i'm giving. I've also added a button that refresh the module,
and after clicking it the tasks are ordered in the right way (from the first i added to the last).
What can the problem be? Are there some project attributes i should look for?