There is a consistent problem in Candy Crush Friends when using a mouse and sometimes even touch (I use a Dell Canvas 27" as secondary touch tablet).
What happens is that sometimes moving over a candy to move it the click is not registered so the candy doesn't move, or other times it will not move in the direction you want, and infuriatingly other times it will move in a completley wrong way and mess up the move really badly.
My mouse, keyboard, laptop and tablet are all high quality well calibrated and up to date with drivers.
This also happens, (though less frequently) on my LG V20 (Oreo) .
Any other users having similar issues ? I have tried a search on this forum, but the search is basic and the problem vague to describe.