In 16.1.1, although related Risks do show on the To Do Workspace, the Issues and Changes do not.
1. Go to Modern Workspace> Projects >
select an active Project
2. Create an Issue, Risks, Change
3. Associate a ToDo for each Issue, Risk , Change
Assign an owner.
4. Delete a Change ToDo and create Change Todo again.
5. Go to Modern Workspace> To Dos
Validate the To Dos do show on the individual Risk Issue and Change created.
The issue and change ToDos do not show on the 'All' tab.
Only the Risks ToDos show.
ToDos should appear on Issues, Risks, Change, and just not Risks.
Release : 16.1.1
This is reported as DE69185/DE67710 and is resolved in 16.1.2
The workaround is to clear security.caches and log out and log back in.