Any time a project starts to get relatively big (by that I mean a normal amount of clips and effects for an almost-finished project) the program starts playing the movie from the very beginning when I press the "Play" button, NO MATTER WHERE THE CURSOR IS ON THE TIMELINE. It doesn't at first, and then after awhile of working in the same project it stops playing from the spot in the timeline that I have it set to. Pressing the play button in brackets beside it sometimes solves the problem, but then even hitting that sometimes plays the project from the very beginning anyway. It's not even consistent. It's maddening and can actually make editing virtually impossible.
2015 never had this problem.
Please help. How can I stop it from reseting to the beginning EVERY. SINGLE. TIME.
Thanks in advance.