Hi there,
I have been trying to display my epics on the Gantt chart in Portfolio, but even though they do have a target start and a target end, I have been able to visualize only one epic with one timeline (the first one on the backlog)
How is it possible to display all my epics with there target start and target end on the Gantt chart ?
Here is a screeshot of my Gantt :
(Blue frame : the epic displayed on the Gantt | Orange frame : the epic i wish to display on the Gantt)

Thanks a lot for your help 
KR
Mayane