Issue Summary

The two-dimensional gadget has just added the field Epic Link. However, the Next-Gen Epic Link or "Parent" is not included. 

Steps to Reproduce

1. Add the two-dimensional Gadget and select Epic Link in any of the columns.
2. Select a Filter that includes Next-Gen Issues. 
3. Jira shows None for all issues. 

Expected Results

Jira should group the issues by "Parent" in Next Gen Issues similar case with Epic Link in Classic.

Actual Results

Jira Shows None no matter we have an Epic Relation in Next-Gen Project.

Workaround

Currently, there is no known workaround for this behavior.