An app and a website can fail in different ways even when they use the same account. Compare one specific action—such as signing in or opening a document—on both surfaces within a few minutes.
Record the app version, browser, approximate local time, region, and the exact step that fails. If only one surface breaks, try a second device or network before treating it as a service-wide outage. Avoid posting account details or screenshots containing personal data.
What action succeeds on one surface but fails on the other?