Hello Team,
We have upgraded the JIRA from v7.0.10 to v7.3.6 with tempo plugin.We have also upgrade the old project data to latest v7.3.6 project data & took backup of that project.
But the problem is when we are trying to import a single project from that archived project backup we are facing custom field related issue like Account,Iteration,Tempo Team.
Please provide solution for the same.

Thanks & Regards,
Dnyaneshwar.