How do I Mirror a animation

HELP so i want to mirror my person and i set up my commands to be like -- Keyboard_Right arrows down--- set animation (and it would be mirrored like i wanted it to be) BUT THEN when i test my game and i move my Player left and right the player glitches up into the air and like then falls out of the map.......Could any1 understand or relate to what im saying and help me in some way PLEASE!!!!!!! THANKS 4 READING THIS AND HELPING ME VERY MUCH APPRECIATED.

there is a set Mirrored action. also it sounds like maybe you have a weird image point make sure it's located in the middle of your images for the best mirrored result

Thank YOU SOOOO MUCH!!!!!!!!!!!!!!! i cant even express my thanks but thank u.....you have helped me out a bunch!!!!!