MouseArea stops responding

<UDPATE>

Thanks to srutledg’s help, I found what causes this bug.

Modern Android devices can recognize certain hand gestures (see attached pictures). For example:

• on Xiaomi and Huawei devices you can take a screenshot by sliding 3 fingers down
• on Samsung devices you can take a screenshot by swiping the edge of your hand across the screen [called: Palm swipe]. 
• on Samsung devices you can mute incoming calls or alarms by putting your hand over the screen [called: Easy mute].

Probably the following happens:

1. The MouseArea captures the Press event.
2. The OS recognizes it as a gesture, not a touch.
   "Xiaomi: D ViewRootImpl: cancle motionEvent because of threeGesture detecting"
3. The MouseArea never gets notified that the Press was cancelled due to gesture recognition.

</UDPATE>

On android devices the MouseArea becomes irreversibly unresponsive if touched in an unusual way.

Tested devices:

FAILED: Samsung Galaxy TAB A 2016 (SM-T585) – Android 7.0

• Touching with palm: https://youtu.be/yhQXaVbgCeo
• Touching with side of hand: https://youtu.be/4bUE5iYczUY

FAILED: Xiaomi Redmi Note 5 Pro – Android 8.1.0

• Sliding three fingers: https://youtu.be/bv_QMBVvoLY

FAILED: Huawei P9 Lite (2017) – Android 8.0.

• Sliding multiple fingers: https://youtu.be/oh7a7TH-ZTI

FAILED: Samsung Galaxy Edge S7 – Android 8.0.

•  Touching with side of hand: https://youtu.be/HEVyS1CEhs0

FAILED: Samsung Galaxy A7 2015 – Android 6.0.1

OK: Lenovo Moto Z – Android 8.0

OK: OnePlus 5 – Android 8.1

OK: Samsung Galaxy Tab 3 Lite (SM-T110) – Android 4.2.2

OK: Asus Nexus 7 (2012) – Android 5.1.1

OK: Vodafone Smart Mini – Android 4.1.1

The error message:

W libMouseTest.so: (null):0 ((null)): TouchPointPressed without previous release event QQuickEventPoint(accepted:false state:Pressed scenePos:QPointF(714.667,504.667) id:2000001 timeHeld:0)

I attach an example project and a test apk built with Qt 5.12.0 RC2.

This bug is a big problem for my users living with movement disability as the program freezes easily after a not well-controlled touch. Please help me solve this issue. Any quick workaround would be much appreciated as hundreds of my users have reported this problem.