Hello,
Since Friday it seems we're encountering an issue on our Jira board.
We're not able to move a task to a sub-task
With the ID of the parent issue -> no suggestion the issue does not appears (only old issue already closed)

With the link of the parent issue -> Error message sayin it does not exist 
Are we the only one to fce this issue ? We used to move tickets every day I don't understand what I am missing here to make it work
Thanks