Swimlanes based on Epics from TM project are not working anymore

Issue Summary

If we create a personal board or a company-managed board to display epics with child issues from a team-managed project, adding swimlanes based on Epics is not working anymore.

Reproducing: https://share.getcloudapp.com/o0uGbZxp

Steps to Reproduce

1. Create a team-managed project and create epics with child issues
2. Create a company-managed board and edit the filter query to retrieve the issues from that TM project
3. Map the statuses to the columns of the board on the company-managed board
4. Edit the board settings > swimlanes > based on epics

Expected Results

The board should display the epics and their child issues.

Actual Results

No epic is displayed.

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available