Issue Summary

Guest users can be assigned to tasks by regular Confluence users, and can create tasks on their own (just not @mention any user to those since it's one of the blocked actions as defined in "What can guests see and do in Confluence?").

While connected as a Guest users, once you click "Tasks" (<instance-url>/wiki/home/tasks) on your Home Navigation card, an error message is displayed:

“We’re having trouble getting your results”.

Additionally, when you check the 'Tasks' entry on the Home Navigation card, if there are no tasks assigned to the user it correctly displays "0" in the badge, however if there are 1 or more tasks assigned to the guest user, the badge displays "-" instead of the actual number.

Steps to Reproduce

1. Logged in as a regular user go to a space shared with guests.
2. Create a task and assign to one of your Guest users.
3. Logout (or use another session) and login as that guest user.
4. Click "Tasks" on your Home screen.

Expected Results

The assigned task is displayed, and number of tasks in the badge match the open tasks for the user.

Actual Results

The following error message is displayed:

“We’re having trouble getting your results”. 

Also, the badge next to "Tasks" menu entry displays '-' instead of the correct number of items.

Workaround

Guest users are currently limited to their in-app notifications about any task assigned to them.

Alternatively, it's possible to create a page with Task Report macro in the target space for the guests to allow tracking of any pending item, but it's not possible to filter to any particular guest as assignee (CONFCLOUD-76394). For now it could be used only to show ALL pending tasks for that space, requiring each guest user to locate their tasks in the list (manual sorting).