Since you may have thousands of projects in Asana, Instagantt will only show those projects you choose to connect & sync.
During your first Instagantt session, you will be prompted to browse your projects and connect those you'd like to visualize in Gantt format. If you need to connect projects after this initial session, simply click on the button "+" icon at the top of the left sidebar.
There are three types of Gantt views you can create:
Browse the list and connect desired projects via the "Connect" button
Navigate to the "Project Groups" tab and click "Create a new group". Search for the projects you want in that group, then click "Create".
All connected projects and groups will appear on the left sidebar, sorted by Asana Organization/Workspace. Groups can be modified by clicking on the wheel icon to the right of the group name.
Instagantt won't automatically remove projects that have been removed or archived in Asana. To delete these projects from Instagantt, click the "+" in the top left, then click "Disconnect" to the right of the project names.