[Motorola Moto G100 / Edge S] mentao:
I'm using the latest LOS 19 with microG from here on my nio and I'm trying to get text-to-speech to work (to use it in OSMAnd~). However, non of the TTS engines I tried works (Google Speech Services, flite, RHVoice). They all suffer from the same problem: Once I go to Settings > System > Languages > Text-to-speech output the Settings app jumps back to the System category. If I try navigating there again, it crashes.

Here's the log when the crash happens:

05-27 14:56:35.644 16812 16812 D SettingsActivity: Starting to set activity title
05-27 14:56:35.644 16812 16812 D SettingsActivity: Done setting title
05-27 14:56:35.644 16812 16812 D SettingsActivity: Switching to fragment com.android.settings.tts.TextToSpeechSettings
05-27 14:56:35.644 16812 16812 D SubSettings: Launching fragment com.android.settings.tts.TextToSpeechSettings
05-27 14:56:35.645 1494 2865 E UserRestrictionsUtils: Unknown restriction queried by uid 1000 (org.lineageos.lineagesettings et al): null
05-27 14:56:35.646 1494 2865 E UserRestrictionsUtils: Unknown restriction queried by uid 1000 (org.lineageos.lineagesettings et al): null
05-27 14:56:35.646 1494 2865 E UserRestrictionsUtils: Unknown restriction queried by uid 1000 (org.lineageos.lineagesettings et al): null
05-27 14:56:35.650 1494 2865 I ActivityTaskManager: START u0 {act=android.speech.tts.engine.CHECK_TTS_DATA cmp=com.github.olga_yakovleva.rhvoice.android/.CheckTTSData} from uid 1000
05-27 14:56:35.655 1202 1202 I android.hardware.power-service-qti: Power setMode: 5 to: 1
05-27 14:56:35.659 16812 16812 D SettingsActivity: Executed frag manager pendingTransactions
05-27 14:56:35.681 16812 16834 D SettingsActivity: No enabled state changed, skipping updateCategory call
05-27 14:56:35.685 1494 7986 W ActivityTaskManager: Tried to set launchTime (0) < mLastActivityLaunchTime (6736388)
05-27 14:56:35.691 1022 12398 I netd : bandwidthAddNiceApp(10263) <0.04ms>
05-27 14:56:35.742 1494 1737 I ActivityTaskManager: Displayed com.android.settings/.SubSettings: +129ms
05-27 14:56:35.743 16812 16812 D CompatibilityChangeReporter: Compat change id reported: 78294732; UID 1000; state: ENABLED
05-27 14:56:35.743 16812 16812 E TextToSpeechSettings: Voice data check complete, but no engine bound
05-27 14:56:35.743 16812 16812 D AndroidRuntime: Shutting down VM
05-27 14:56:35.744 16812 16812 E AndroidRuntime: FATAL EXCEPTION: main
05-27 14:56:35.744 16812 16812 E AndroidRuntime: Process: com.android.settings, PID: 16812
05-27 14:56:35.744 16812 16812 E AndroidRuntime: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1230932445, result=1, data=Intent { (has extras) }} to activity {com.android.settings/com.android.settings.SubSettings}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.ActivityThread.deliverResults(ActivityThread.java:5368)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.ActivityThread.handleSendResult(ActivityThread.java:5407)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:67)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2253)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.os.Looper.loopOnce(Looper.java:201)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.os.Looper.loop(Looper.java:288)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7870)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.speech.tts.TtsEngines.parseEnginePrefFromList(TtsEngines.java:510)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.speech.tts.TtsEngines.isLocaleSetToDefaultForEngine(TtsEngines.java:372)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at com.android.settings.tts.TextToSpeechSettings.updateDefaultLocalePref(TextToSpeechSettings.java:524)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at com.android.settings.tts.TextToSpeechSettings.onActivityResult(TextToSpeechSettings.java:507)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.fragment.app.FragmentManager$9.onActivityResult(FragmentManager.java:3011)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.fragment.app.FragmentManager$9.onActivityResult(FragmentManager.java:2991)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.activity.result.ActivityResultRegistry.doDispatch(ActivityResultRegistry.java:362)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.activity.result.ActivityResultRegistry.dispatchResult(ActivityResultRegistry.java:322)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.activity.ComponentActivity.onActivityResult(ComponentActivity.java:634)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at androidx.fragment.app.FragmentActivity.onActivityResult(FragmentActivity.java:164)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at com.android.settings.SettingsActivity.onActivityResult(SettingsActivity.java:476)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.Activity.dispatchActivityResult(Activity.java:8385)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: at android.app.ActivityThread.deliverResults(ActivityThread.java:5361)
05-27 14:56:35.744 16812 16812 E AndroidRuntime: ... 13 more
05-27 14:56:35.745 1494 2865 W ActivityTaskManager: Force finishing activity com.android.settings/.SubSettings
05-27 14:56:35.745 1494 16960 I DropBoxManagerService: add tag=system_app_crash isTagEnabled=true flags=0x2
05-27 14:56:35.746 1494 2865 W ActivityTaskManager: Force finishing activity com.android.settings.intelligence/.search.SearchActivity
05-27 14:56:35.747 16812 16812 I Process : Sending signal. PID: 16812 SIG: 9
05-27 14:56:35.789 0 0 I binder : undelivered transaction 2177669, process died.
05-27 14:56:35.790 0 0 I binder : undelivered transaction 2177654, process died.
05-27 14:56:35.799 1494 2865 I ActivityManager: Process com.android.settings (pid 16812) has died: fg TOP
05-27 14:56:35.800 1494 1777 I libprocessgroup: Successfully killed process cgroup uid 1000 pid 16812 in 0ms
05-27 14:56:35.802 1494 5392 I WindowManager: WIN DEATH: Window{4c195a8 u0 com.android.settings/com.android.settings.Settings}
05-27 14:56:35.802 1494 5392 W InputManager-JNI: Input channel object '4c195a8 com.android.settings/com.android.settings.Settings (client)' was disposed without first being removed with the input manager!
05-27 14:56:35.804 1023 1023 I Zygote : Process 16812 exited due to signal 9 (Killed)
05-27 14:56:35.804 1494 6205 W WindowManager: Cannot find window which accessibility connection is added to
05-27 14:56:35.805 1494 6204 I WindowManager: WIN DEATH: Window{e8cb5a7 u0 com.android.settings/com.android.settings.SubSettings}
05-27 14:56:35.805 1494 6204 W InputManager-JNI: Input channel object 'e8cb5a7 com.android.settings/com.android.settings.SubSettings (client)' was disposed without first being removed with the input manager!
05-27 14:56:35.807 1494 1759 W UsageStatsService: Unexpected activity event reported! (com.android.settings/com.android.settings.homepage.SettingsHomepageActivity event : 23 instanceId : 216578729)

Anybody got any hints on what I could do to fix it?

Anybody got an idea against which which project / repo / etc this could be reported (while not playing 'You should report this elsewhere' ping pong? ;))