Qt 5.12.2 Android application crashes directly after start

[indowings_dev]

Hi everyone,
I am a facing a problem while installing the apk on my GCS. The error states:
FATAL EXCEPTION: main
Process: com.codev.flydynamic2, PID: 16022
java.lang.UnsatisfiedLinkError: No implementation found for void org.qtproject.qt5.android.QtNative.handleOrientationChanged(int, int) (tried Java_org_qtproject_qt5_android_QtNative_handleOrientationChanged and Java_org_qtproject_qt5_android_QtNative_handleOrientationChanged__II)

at org.qtproject.qt5.android.QtNative.handleOrientationChanged(Native Method)
at org.qtproject.qt5.android.QtActivityDelegate$4.onDisplayChanged(QtActivityDelegate.java:676)
at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate.handleMessage(DisplayManagerGlobal.java:736)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

The application is perfectly working in some GCSs and phones but crashing in some GCSs.

Also I tried locating the Native files but they seem to be in read only format.

HELP

[JoeCFD]

@indowings_dev Qt 5.12.2 is too old. Try 5.15.2 or higher first.

[indowings_dev]

@JoeCFD sorry, i am using Qt5.15.2 only, can you please help.

[JoeCFD]

@indowings_dev have not seen this issue in my app. But found an old link. Check it out.
https://forum.qt.io/topic/41689/solved-crash-qtactivity-with-qt-5-3/7