https://www.dropbox.com/s/c1eixd9c58aib ... .capx?dl=0
Among other things I increased LOS range, otherwise enemy never has LOS to Jeff. Now it's chasing Jeff straight away.
Angle 0 in Construct2 is at the right, so all sprites should be facing right, that's why I turned your EnemyAI image.
Also you are using tiled background wrong. You should not have hundreds of instances of tiled background! Just put one instance on the layout and resize it.
If you want different tiles with different grass, use TileMap object instead. But again, you need only 1 instance of tilemap with 300 tiles, not 300 instances with 1 tile each <img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile">