It is kinda had to tell, but is the Slime enemy colliding wit the pillar? Have you tried going in the detail tab in the editor (while having the enemy_bp clicked) and go to “character movement component” and switch the x/y number down, so he is going left to right less? Or maybe just move the enemy to the left and see it colliding was an issue. Again in the video it is hard to tell, just figured to give you my 2 cents, let me know if you ever figure it out, curious to what is causing it. Good Luck!