We have migrated a project to another Jira instance which has Jira Align. In the destination Jira instance a new project was created that is hooked up to Jira Align and we have copied tickets from the migrated project to the new project.
We would like to sync data from work done in the first half of this year to Jira Align. I created a Sprint and set historical dates but I'm getting some strange behaviour; if I search based on the sprint I can see all the tickets associated to it but in the backlog page only 2 of the tickets show up.
I understand sprints are really meant to be set up for current and future dates. Is there a better way I could sync our Jan-May data?