— - I tested both on my old & new (not expensive) phone and it didn't show any problem. I tested the sample file on my old phone considering that it may be caused by a lag or delay but still works fine and tested on my new phone considering that it might be a compatibility issue and it still works fine. I also tested it on my ultrabook and it still works.
Have you checked your touch recently for any problem? If not then maybe it is an android marshmallow problem.