Hello, I have a problem with the filters in the issue navigator.
I use Epics in my project and I want to be able to create a filter for all the issues in a single Epic.
When I select a filter for Epic Name or Epic Link, the list is empty (and I have 39 epics in that project), please see screenshot:

When I use JQL to create a filter it's not giving me any results (and I have 23 child issues in the selected epic):
We have many projects in the company, and on other projects, I have no problems with creating such filers.
I'll appreciate it if someone can help me to understand what is wrong here.
Thanks!