Thanks for your post! As @BGanger mentioned, this could be due to a field that’s marked as required on your Redmine instance, but not available on the defect plugin. You would need to mark this field as optional if this is the case. We’re also happy to help troubleshoot the issue, and you can feel free to send us an email to firstname.lastname@example.org so we can request additional details and review the specific issue with your use case. Hope this helps!