You can’t make your AI move to slope that are very sharp or very steep and pathfindingservice is possible to do on very uneven terrain but it wont reach its designated target. Maybe try making the terrain more navigable or easier to be navigated by the ai or you could either place specific positions on where the ai should jump at to make it possible for the ai to get across the uneven terrain or make the ai ragdoll itself, letting your enemy ai vulnerable to physics and let it fall on its own. This could help you or If none of I said works then the final option is just to Increase his hip height.