Epics becomes Stories after bulk issue migration between boards

[Parag Bhatnagar]

1. I migrated issues from Next-Gen to Classic and found my Epics are now Stories. Yes, I did check the mapping selection during the migration process.
2. When I change the Story to epic, the title becomes 'Unlabelled-{KEY}-##' 

So I need to find my Epics then relabel all of them.

Is there an easier to way to do this?

[Alexey Matveev]

Hello,

I am not sure how to handle this task now. But I also did migration from next-gen to classic and my epic became epics not stories.