@Vacui I notified Epic of this “bug” in either their release or in their release notes. No reply as yet.
So far it has been 4 days since 5.0.3 dropped, and still there has been no actual update to Lyra in spite of what the release notes say.
FWIW every time you create a new project from the launcher, it gives you a random project ID. So that having changed doesn’t mean anything other than that you clicked the “create a new project” button.