Hi there,
I'm currently testing Tempo Planner with our newest Jira Server Instance (7.4.3).
As you can see in the Screenshot below, if I chose "Tempo"-> "Team Planning" and then "Planning" "Backlog" I get the endless Loading screen.
The Project is about 1 year old, has 1000 closed (Sub)Tasks and about 300 open (Sub)Tasks including 11 released versions and 8 open versions.
Is this projectsize to big to be planned inside jira tempo?