The website currently states that they are working on apps from Feb 19th. You said she applied in Feb, so it's nothing unusual.
She should hear soon about the study permit. I would advise that she wait for an answer before doing anything with the PR app. If it's approved, she can re-submit the PR/OWP app as normal. If it's refused, she can submit the PR/OWP app with a request for Restoration of Status.