The suggestion list of "Epic links" is generated incorrectly.

[atlassian_admins]

For a number of users, for unknown reasons, the list of suggestions in the "Epic links" field has been changed. Their Epics were in the suggestion list and it was convenient for them to choose them for new tasks. Now that the suggestion list includes Epics that they did not work with, but their Epics have disappeared, it has become inconvenient to work with them. But it is not clear where this list is stored and how to edit it. How it is possible to return to users their lists of suggestion?