Copy of pages generates confluence task duplication without a chance to solve them

[Sebastian]

Hi together
Under different circumstances we have the following situation (not everytime - but too often):

1. Create a new Page AAA 
2. Add a confluence task on page AAA
3. Copy Page AAA to a new page BBB
4. Delete the confluence task on BBB
5. Solve the task on AAA
6. On the confluence Page "my task" you have now a task left which you can not solve. Mostly with error message: "Oops! Your task change couldn't be saved.
   There could be a few reasons for this.  Dismiss"

I tried google and atlassian search for hours - these are not the solutions
a) I only found closed bugs 
b) or statements that this is caused only by the old editor https://community.atlassian.com/t5/Confluence-questions/Completed-Task-stacked-in-Task-Report-macro/qaq-p/1304339
c) browser releated problems from 2018 
d) too fast clicking: https://jira.atlassian.com/browse/CONFCLOUD-56972
e) its not a newly created project: https://jira.atlassian.com/browse/CONFCLOUD-65366
f) "Does checking off the task in the Task Report Macro solve your issue?" => no

And the worst thing: Problem is wellknown and closed https://jira.atlassian.com/browse/CONFCLOUD-62685

We often use "Copy Pages" of different type of pages / protocols. We need the old versions and can not just use the page history. 

Any idea?

[Hassan Ghandour]

I am still experiencing this issue has it been not solved yet?

[Sebastian]

no - not solved

[Sebastian]

Error message on the "My Tasks" page:

[Dan.Cooper]

I have the same issue and haven't found a resolution yet.  This used to work from a few weeks back?

[Sebastian]

yep - working since years like that. 

[Sebastian]

Found a Bug-Report on the "Long term backlog".

I am asking myself why Atlassian is not doing a "bug before feature" implementation.
EDIT: added this link: https://jira.atlassian.com/browse/CONFCLOUD-70623?error=login_required&error_description=Login+required&state=7795765b-6960-4162-8263-9c7fd1ec63fa