[Moto E4 Questions & Answers] andMego:
All apps I have that use the fingerprint sensor only work until I reboot the phone, any idea why? Here's some logs

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App Version: 1.13.0
App Version Code: 46
OS Version: 3.18.31-perf-g336fddd-00001-g0103837
API Level: 25
Android Version: 7.1.1
Device Manufacturer: motorola
Device Codename: perry_f
Device Model: Moto E (4)
Stacktrace: de.devland.masterpassword.util.FingerprintException: Could not create cipher for encryption. Seems your device is unsupported.
at de.devland.masterpassword.util.FingerprintUtil.getCipher(FingerprintUtil.java:226)
at de.devland.masterpassword.util.FingerprintUtil.initDecryptCipher(FingerprintUtil.java:121)
at de.devland.masterpassword.ui.LoginFragment.onResume(LoginFragment.java:117)
at android.support.v4.app.Fragment.performResume(Fragment.java:2238)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1346)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1595)
at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:2914)
at android.support.v4.app.FragmentController.dispatchResume(FragmentController.java:223)
at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:509)
at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:498)
at android.support.v7.app.AppCompatActivity.onPostResume(AppCompatActivity.java:172)
at android.app.Activity.performResume(Activity.java:6815)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3427)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3490)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2749)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1490)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6165)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)
Caused by: android.security.keystore.KeyPermanentlyInvalidatedException: Key permanently invalidated
at android.security.KeyStore.getInvalidKeyException(KeyStore.java:724)
at android.security.KeyStore.getInvalidKeyException(KeyStore.java:748)
at android.security.keystore.KeyStoreCryptoOperationUtils.getInvalidKeyExceptionForInit(KeyStoreCryptoOperationUtils.java:54)
at android.security.keystore.KeyStoreCryptoOperationUtils.getExceptionForCipherInit(KeyStoreCryptoOperationUtils.java:89)
at android.security.keystore.AndroidKeyStoreCipherSpiBase.ensureKeystoreOperationInitialized(AndroidKeyStoreCipherSpiBase.java:265)
at android.security.keystore.AndroidKeyStoreCipherSpiBase.engineInit(AndroidKeyStoreCipherSpiBase.java:148)
at javax.crypto.Cipher.tryTransformWithProvider(Cipher.java:2973)
at javax.crypto.Cipher.tryCombinations(Cipher.java:2884)
at javax.crypto.Cipher$SpiAndProviderUpdater.updateAndGetSpiAndProvider(Cipher.java:2789)
at javax.crypto.Cipher.chooseProvider(Cipher.java:956)
at javax.crypto.Cipher.init(Cipher.java:1329)
at javax.crypto.Cipher.init(Cipher.java:1267)
at de.devland.masterpassword.util.FingerprintUtil.getCipher(FingerprintUtil.java:222)
... 23 more
android.security.keystore.KeyPermanentlyInvalidatedException: Key permanently invalidated
at android.security.KeyStore.getInvalidKeyException(KeyStore.java:724)
at android.security.KeyStore.getInvalidKeyException(KeyStore.java:748)
at android.security.keystore.KeyStoreCryptoOperationUtils.getInvalidKeyExceptionForInit(KeyStoreCryptoOperationUtils.java:54)
at android.security.keystore.KeyStoreCryptoOperationUtils.getExceptionForCipherInit(KeyStoreCryptoOperationUtils.java:89)
at android.security.keystore.AndroidKeyStoreCipherSpiBase.ensureKeystoreOperationInitialized(AndroidKeyStoreCipherSpiBase.java:265)
at android.security.keystore.AndroidKeyStoreCipherSpiBase.engineInit(AndroidKeyStoreCipherSpiBase.java:148)
at javax.crypto.Cipher.tryTransformWithProvider(Cipher.java:2973)
at javax.crypto.Cipher.tryCombinations(Cipher.java:2884)
at javax.crypto.Cipher$SpiAndProviderUpdater.updateAndGetSpiAndProvider(Cipher.java:2789)
at javax.crypto.Cipher.chooseProvider(Cipher.java:956)
at javax.crypto.Cipher.init(Cipher.java:1329)
at javax.crypto.Cipher.init(Cipher.java:1267)
at de.devland.masterpassword.util.FingerprintUtil.getCipher(FingerprintUtil.java:222)
at de.devland.masterpassword.util.FingerprintUtil.initDecryptCipher(FingerprintUtil.java:121)
at de.devland.masterpassword.ui.LoginFragment.onResume(LoginFragment.java:117)
at android.support.v4.app.Fragment.performResume(Fragment.java:2238)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1346)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1595)
at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:2914)
at android.support.v4.app.FragmentController.dispatchResume(FragmentController.java:223)
at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:509)
at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:498)
at android.support.v7.app.AppCompatActivity.onPostResume(AppCompatActivity.java:172)
at android.app.Activity.performResume(Activity.java:6815)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3427)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3490)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2749)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1490)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6165)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)