When I use two fingers while holding down the up and down (or right and left ) extrakeys for a few seconds.
Then my mobile phone continues to make a vibration. These two keys are constantly simulated.
Then I have a long press (including paste copy)
Termux suddenly exited.

My device is Android 8.1
module is Vivo x20

This is adb info, Maybe you need.
`2020-03-30 23:06:21.826 1041-1151/? E/ThermalEngine: vivo_thermal_parameter_config :VivoThermal:read type:0 buf:

2020-03-30 23:06:21.836 2037-2037/? D/AndroidRuntime: Shutting down VM
2020-03-30 23:06:21.837 2037-2037/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.termux, PID: 2037
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:5102)
at android.view.ViewGroup.addView(ViewGroup.java:4933)
at android.view.ViewGroup.addView(ViewGroup.java:4890)
at android.widget.PopupWindow.createDecorView(PopupWindow.java:1408)
at android.widget.PopupWindow.preparePopup(PopupWindow.java:1356)
at android.widget.PopupWindow.showAtLocation(PopupWindow.java:1198)
at android.widget.PopupWindow.showAtLocation(PopupWindow.java:1170)
at com.termux.view.TerminalView$e.c(SourceFile:8)
at com.termux.view.TerminalView$e.b(SourceFile:30)
at com.termux.view.TerminalView$e.a(SourceFile:8)
at com.termux.view.TerminalView$f.e(SourceFile:3)
at com.termux.view.TerminalView.onDraw(SourceFile:6)
at android.view.View.draw(View.java:19328)
at android.view.View.updateDisplayListIfDirty(View.java:18257)
at android.view.View.draw(View.java:19045)
at android.view.ViewGroup.drawChild(ViewGroup.java:4401)
at androidx.drawerlayout.widget.DrawerLayout.drawChild(SourceFile:14)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4180)
at android.view.View.updateDisplayListIfDirty(View.java:18243)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4380)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4360)
at android.view.View.updateDisplayListIfDirty(View.java:18211)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4380)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4360)
at android.view.View.updateDisplayListIfDirty(View.java:18211)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4380)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4360)
at android.view.View.updateDisplayListIfDirty(View.java:18211)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4380)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4360)
at android.view.View.updateDisplayListIfDirty(View.java:18211)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:676)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:682)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:790)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:3101)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2894)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2447)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1456)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6964)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:932)
at android.view.Choreographer.doCallbacks(Choreographer.java:744)
at android.view.Choreographer.doFrame(Choreographer.java:676)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:918)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:192)
at android.app.ActivityThread.main(ActivityThread.java:6738)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:550)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:825)
2020-03-30 23:06:21.837 22699-24171/? I/GoLog: udp:127.0.0.1:40475 accepted udp:1.1.1.1:53 [proxy]
2020-03-30 23:06:21.844 22699-22734/? I/GoLog: udp:127.0.0.1:42009 accepted udp:1.1.1.1:53 [proxy]
2020-03-30 23:06:21.847 2506-2823/? D/SLService: ppCra : com.termux pid : 2037
2020-03-30 23:06:21.856 1711-2531/? W/ActivityManager: Force finishing activity com.termux/.app.TermuxActivity
2020-03-30 23:06:21.858 1711-2531/? I/ActivityManager: vivoAdjustFocusedActivityStackLocked step1 r = ActivityRecord{b9ce010 u0 com.termux/.app.TermuxActivity t220 f}, reason = finishActivity, mResumedActivity = ActivityRecord{b9ce010 u0 com.termux/.app.TermuxActivity t220 f}
2020-03-30 23:06:21.859 1711-2531/? D/ActivityTrigger: ActivityTrigger activityPauseTrigger
2020-03-30 23:06:21.902 1711-2531/? D/DisplayPowerController: mSettingBrightness = -1 as request 55
2020-03-30 23:06:21.909 1711-1847/? W/ActivityManager: App has crashed more than 1 times.Skipping crash dialog of ProcessRecord{2ee9f35 2037:com.termux/u0a898}
2020-03-30 23:06:21.923 2037-2037/? I/Process: Sending signal. PID: 2037 SIG: 9
2020-03-30 23:06:21.942 22699-24185/? I/GoLog: Using Prepared: 104.31.72.127
2020-03-30 23:06:21.928 2087-2087/? W/bash: type=1400 audit(0.0:21472): avc: denied { ioctl } for path=2F6465762F7074732F31202864656C6574656429 dev="devpts" ino=4 ioctlcmd=540a scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:untrusted_app_devpts:s0:c512,c768 tclass=chr_file permissive=0
2020-03-30 23:06:21.943 1711-2112/? W/InputDispatcher: channel '8c422c4 PopupWindow:c2124f1 (server)' ~ Consumer closed input channel or an error occurred. events=0x9
2020-03-30 23:06:21.943 1711-2112/? E/InputDispatcher: channel '8c422c4 PopupWindow:c2124f1 (server)' ~ Channel is unrecoverably broken and will be disposed!
2020-03-30 23:06:21.943 1711-2112/? W/InputDispatcher: channel 'd5f2556 PopupWindow:b414244 (server)' ~ Consumer closed input channel or an error occurred. events=0x9
2020-03-30 23:06:21.943 1711-2112/? E/InputDispatcher: channel 'd5f2556 PopupWindow:b414244 (server)' ~ Channel is unrecoverably broken and will be disposed!
2020-03-30 23:06:21.943 1711-2112/? W/InputDispatcher: channel 'adb4d18 PopupWindow:c2124f1 (server)' ~ Consumer closed input channel or an error occurred. events=0x9
2020-03-30 23:06:21.943 1711-2112/? E/InputDispatcher: channel 'adb4d18 PopupWindow:c2124f1 (server)' ~ Channel is unrecoverably broken and will be disposed!
2020-03-30 23:06:21.947 22699-22891/? I/GoLog: Using Prepared: 104.31.72.127
2020-03-30 23:06:21.950 1711-2112/? W/InputDispatcher: channel '58ede22 com.termux/com.termux.app.TermuxActivity (server)' ~ Consumer closed input channel or an error occurred. events=0x9
2020-03-30 23:06:21.950 1711-2112/? E/InputDispatcher: channel '58ede22 com.termux/com.termux.app.TermuxActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
2020-03-30 23:06:21.951 1711-15318/? I/WindowManager: WIN DEATH: Window{adb4d18 u0 PopupWindow:c2124f1}
2020-03-30 23:06:21.951 1711-15318/? W/InputDispatcher: Attempted to unregister already unregistered input channel 'adb4d18 PopupWindow:c2124f1 (server)'
2020-03-30 23:06:21.952 1711-2563/? I/ActivityManager: Process com.termux (pid 2037) has died: fore TOP
2020-03-30 23:06:21.953 1711-2563/? W/ActivityManager: Scheduling restart of crashed service com.termux/.app.TermuxService in 1000ms
2020-03-30 23:06:21.954 1711-2211/? D/ScreenBrightnessModeRestore: pakage name is com.termux:10898with :10898
2020-03-30 23:06:21.955 1711-2211/? D/ScreenBrightnessModeRestore: onProcessDiedInner, pid = 2037 , mCurrentForceGroundPid = 4083 mAppName: com.termux:10898 mWaitToRestore=false
2020-03-30 23:06:21.955 2484-9140/? D/_V_AIE-UsageDetailAppCollector: onProcessDied_PID = 2037 ,uid = 10898
2020-03-30 23:06:21.955 2506-3724/? D/GameModeManager: isGameWatchAPP packageName:com.termux
2020-03-30 23:06:21.955 2452-32088/? V/PRA: removePolicy com.termux
2020-03-30 23:06:21.955 2506-8297/? W/MotorModeDaemonService: process died pid : 2037 mMotorModePid: -1
2020-03-30 23:06:21.956 1711-22539/? W/ContextImpl: Calling a method in the system process without a qualified user: android.app.ContextImpl.sendBroadcast:970 com.vivo.services.rms.ProcErrors$MyHandler.broadcast:99 com.vivo.services.rms.ProcErrors$MyHandler.handleMessage:88 android.os.Handler.dispatchMessage:106 android.os.Looper.loop:192
2020-03-30 23:06:21.956 2484-3772/? D/_V_AIE-UsageDetailAppCollector: deleteDiedAppList_getUid()=10898
2020-03-30 23:06:21.956 2484-3772/? D/_V_AIE-UsageDetailAppCollector: deleteDiedAppList_getPid()=2037
2020-03-30 23:06:21.956 2484-3772/? D/_V_AIE-UsageDetailAppCollector: deleteDiedAppList_mForgroundInfo_pid=2037,mForgroundInfo_pkgName=com.termux,mForgroundInfo_uid=10898,mBackgroundInfo_pid=4083,mBackgroundInfo_pkgName=com.bbk.launcher2,mBackgroundInfo_uid=10033
2020-03-30 23:06:21.957 1711-1849/? W/zygote64: kill(-2037, 9) failed: No such process
2020-03-30 23:06:21.957 7398-7661/? I/_V_UsageAppManager: deleteDiedAppList_getUid()=10898
2020-03-30 23:06:21.957 7398-7661/? I/_V_UsageAppManager: deleteDiedAppList_getPid()=2037
2020-03-30 23:06:21.957 7398-7661/? I/_V_UsageAppManager: deleteDiedAppList_mForgroundInfo_pid=2037,mForgroundInfo_pkgName=com.termux,mForgroundInfo_uid=10898,mBackgroundInfo_pid=4083,mBackgroundInfo_pkgName=com.bbk.launcher2,mBackgroundInfo_uid=10033
2020-03-30 23:06:21.957 1711-2211/? D/ScreenBrightnessModeRestore: mRunnable try to restore, mLastScreenBrightness: 55 mWaitToRestoreBrightness: false mWaitToRestoreMode: false mLastScreenMode: 0
2020-03-30 23:06:21.964 1711-1849/? W/zygote64: kill(-2037, 9) failed: No such process
2020-03-30 23:06:21.966 1711-10295/? I/WindowManager: WIN DEATH: Window{d5f2556 u0 PopupWindow:b414244}
2020-03-30 23:06:21.966 1711-10295/? W/InputDispatcher: Attempted to unregister already unregistered input channel 'd5f2556 PopupWindow:b414244 (server)'
`