I appreciate the help, but I don't think I worded my first question properly. When my "player" runs.. the pose that he should be at while stationary is repeated in the sequence, so it looks like he is running properly but when it loops it displays the frame of him standing as well. Paired to that, when the motion stops, it does not go back to the frame of him standing still - the sprite stops at whatever frame he is currently in.
You did fix the jumping issue, thank you.