Why does WitnessWork say it can't verify this device?

Your account, Buddies, Backup, Set Up Another Device, and Scribe AI work only in the genuine WitnessWork app. When a device first connects to your account, and again about every 90 days, WitnessWork asks Apple (App Attest, on iPhone and iPad) or Google (Play Integrity, on Android) to confirm the app and device are genuine. Apple and Google receive only that check, never your records, your account number, or your account key. Simulators, emulators, rooted devices, custom system software, and modified or unofficial copies of the app can't be verified; on Android the device also needs the Google Play Store and Google Play services, up to date. If Settings → Account says Not verified yet, Apple or Google couldn't be reached just then: wait a few minutes and tap Try Again. If it says Can't verify this device, reinstall WitnessWork from the App Store or Google Play and update the device's system software, then tap Try Again. Everything else in WitnessWork works on that device as usual, and your data stays on it. If a genuine device still can't be verified, contact support from the Help Center.