Breaking blocks stops when looking away

As I just updated the game, i managed to discover up a bug that might anger mobile/tablets players.

Basically, its all about long pressing the screen. 

In previous versions as a player was long pressing the screen, all the blocks would break as far as they are part of the maximum breaking distance, even when looking away and then looking back. This would all work if players didnt stop pressing the screen.

However! In this version this isnt a thing anymore! When long pressing, if looking away, the action stops, even if the player didnt stop it. Same thing happens when there ain't any other blocks in a row.

The attachment explains much more, since im not sure how well ive been able to explain the situation.

In the video its me, breaking some bone blocks. I havent stopped pressing the screen, but the game did stop the action. All i did was to look away, but i did not stop performing the action. So, of couse, i had to perform it again, and again. Which might be pretty much annoying.