BUG : When the user changes the rotation to the landscape screen suddenly the feature stops and returns to the main page of the application.

Expected behavior

When the user selects the HIRAGANA feature and changes the rotation to the landscape screen, this feature should not stop or return to the main page.

Actual behavior

When the user selects the HIRAGANA feature and changes the rotation to the landscape screen unexpectedly, this feature stops and returns to the main page.

How to reproduce

• Download the application on f-droid.
• run the app.
• Select HIRAGANA feature, Continue to change screen rotation to landscape.
• Suddenly this feature is broken and returned to the main page.
• Browser: KaQui version 1.12
• Operating System: xiomi redmi 4A Android version of Android: 6.0.1

Recording of the Bug