We have just updated our Jira Data Center server to v10. I have a user that uses the "Import Issues from CSV" regularly. Since the upgrade she is now unable to import her CSV files. The error is "Issue can't be created due to the error/s [ Module is required. ]"
The Module field is a cascading select field. It is set as a required field. The import has worked in the past.
In testing I found that if I set the Module field as optional the import will work fine. If I set other fields as required, fields that are not a cascading select field, the import also works fine.
Is there an issue with the "Import Issues from CSV" function if there is a required cascading select field in v10 Data Center?