Hi,
In the Plans timeline view, when I click the expand arrow next to a workstream,
it shows a loading indicator but then the arrow disappears and child issues
are not displayed.
However, when I open the workstream detail page directly, the child issues
are visible there.
Steps to reproduce:
1. Open Plans timeline view
2. Click the expand arrow next to a workstream
3. Arrow disappears after loading, no child issues shown
Expected: Child issues should appear under the workstream
Actual: Arrow disappears, child issues not shown

Is this a known bug or is there a workaround?