Following Atlassian documentation for migration practices, I am trying to convert all the Nex-Gen Projects in Cloud to Classic Software Projects as I cannot import Next-Gen Projects to an on-prem instance.
Epic Name, Epic Link, and Next-Gen specific Fields appear to not be able to move from Next-Gen to Classic using the Bulk-Tool.
It seems since these Fields either do not apply to Next-Gen or apply only too Next-Gen, moving these issues with these data points into the global configuration will cause data loss no matter what I do.
Is it possible to export the Fields mentioned above accurately for Next-Gen Issues? If this could be possible along with Comment Bodies (all comments is very important), I could use our on-prem import tool to create these issues in the Target instance.