You can check by going to frame "9988" in your replay. Edit on that frame and press shift + p. You can see that some of your joints break.
That way you can pretty much search in all replays for that particular glitch. After you checked a frame, reload the replay and try a different frame. If you do that with all frames you might find the glitch on one of them. If you don't, the replay is valid.
Last edited by Zockinator; Mar 10, 2016 at 01:10 AM.