Issue Summary

Any Kanban project with Backlog and Epic Panel enabled can present this issue. Having subtasks displayed in the backlog upon an Epic selection from the Epic panel view generates an empty grey area in between the issue list if the selection results in a smaller number of subtasks without the filter.

Steps to Reproduce

1. Create a Kanban project
2. Enable Backlog by dragging a status into the Backlog column under the Columns options from the respective board settings
3. Create subtasks to be displayed in the Backlog selection
4. Ensure these are under an Epic's child issue
5. Open the Backlog page
6. Open the Epic Panel
7. Browse through the Epics and notice the grey area enlarge with empty space and shrink as they differ in number of subtasks

Expected Results

Grey area should be responsive enough to not let empty spaces in the backlog section and only appear upon subtasks appearence

Actual Results

Grey area is displayed in different sizes with empty spaces.

Workaround

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