Small update, I have narrowed this down to "MotionEvent.TOOL_TYPE_MOUSE" vs "touch events".
The apps that do not support scrolling (Android 6 and above) take the air-mouse to be a standard mouse for the input device so when sending the command Click + drag it produces drag-highlight just as it would with a standard mouse left click instead of drag-scroll. To prove this simply plug a normal mouse with a scroll wheel into the Minix and the same result is produced, left click selects text while the scroll wheel will scroll the page. The exception is of course with the apps that support (left click) scrolling, Google Play Store for example, left mouse click on a standard mouse produces the scroll as does the scroll wheel.
Now, Minix firmware (Amlogic really) above Android 5 obviously have a different approach or protocol when it comes to input devices as this is proved when comparing Chrome scrolling on the U1 vs the U9 with an air-mouse, to fix this I am afraid to say is above my pay grade but I assume this can be overcome system wide.
So I reach out to
@MINIX - John and
@MINIX – Martin, can you check with your engineers first or direct the query to Amlogic on how this can be rectified system wide if at all. Basically the Minix air-mouse range need to be identified by the OS as a mouse without a scroll wheel (touch events). I feel it justified as it does affect a lot of legitimate main stream apps available on Google Play Store, thanks.