[Google Pixel 4 ROMs, Kernels, Recoveries, & Other ] promptEngineer:
Hello and thanks a bunch for this ROM.

The latest May build has a force-close bug in the DerpSpace. Attempting to open Lockscreen -> Lockscreen UI settings there will crash the DerpSpace.

05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: No service published for: fingerprint
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: android.os.ServiceManager$ServiceNotFoundException: No service published for: fingerprint
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.os.ServiceManager.getServiceOrThrow(ServiceManager.java:166)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.SystemServiceRegistry$72.createService(SystemServiceRegistry.java:914)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.SystemServiceRegistry$72.createService(SystemServiceRegistry.java:909)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.SystemServiceRegistry$CachedServiceFetcher.getService(SystemServiceRegistry.java:1975)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.SystemServiceRegistry.getSystemService(SystemServiceRegistry.java:1652)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.ContextImpl.getSystemService(ContextImpl.java:2132)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:188)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.Activity.getSystemService(Activity.java:7154)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at org.derpfest.derpspace.fragments.LockscreenUI.onCreate(LockscreenUI.java:90)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.Fragment.performCreate(Fragment.java:3009)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:474)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:257)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1862)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1780)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1723)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at androidx.fragment.app.FragmentManager.executePendingTransactions(FragmentManager.java:586)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.settings.SettingsActivity.switchToFragment(SettingsActivity.java:776)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.settings.SettingsActivity.launchSettingFragment(SettingsActivity.java:558)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.settings.SettingsActivity.createUiFromIntent(SettingsActivity.java:310)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.settings.SettingsActivity.onCreate(SettingsActivity.java:269)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.Activity.performCreate(Activity.java:8383)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.Activity.performCreate(Activity.java:8362)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1433)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3632)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3788)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:138)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2304)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.os.Handler.dispatchMessage(Handler.java:106)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.os.Looper.loopOnce(Looper.java:201)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.os.Looper.loop(Looper.java:288)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at android.app.ActivityThread.main(ActivityThread.java:7935)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at java.lang.reflect.Method.invoke(Native Method)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
05-08 15:31:13.526 31543 31543 E SystemServiceRegistry: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:942)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: FATAL EXCEPTION: main
05-08 15:31:13.528 31543 31543 E AndroidRuntime: Process: com.android.settings, PID: 31543
05-08 15:31:13.528 31543 31543 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.SubSettings}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.hardware.fingerprint.FingerprintManager.isHardwareDetected()' on a null object reference
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3651)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3788)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:138)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2304)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.os.Looper.loopOnce(Looper.java:201)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.os.Looper.loop(Looper.java:288)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7935)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:942)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.hardware.fingerprint.FingerprintManager.isHardwareDetected()' on a null object reference
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at org.derpfest.derpspace.fragments.LockscreenUI.onCreate(LockscreenUI.java:92)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.Fragment.performCreate(Fragment.java:3009)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:474)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:257)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1862)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1780)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1723)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at androidx.fragment.app.FragmentManager.executePendingTransactions(FragmentManager.java:586)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.settings.SettingsActivity.switchToFragment(SettingsActivity.java:776)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.settings.SettingsActivity.launchSettingFragment(SettingsActivity.java:558)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.settings.SettingsActivity.createUiFromIntent(SettingsActivity.java:310)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at com.android.settings.SettingsActivity.onCreate(SettingsActivity.java:269)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:8383)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:8362)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1433)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3632)
05-08 15:31:13.528 31543 31543 E AndroidRuntime: ... 12 more