Oh but wait I see better what you’re doing now. You are using Add Input Vector so it should be moving even without a controller to receive Inputs. You’re not trying to control it with the player. It’s an enemy. Hah. Silly me.
Also, it should still be affected by gravity even if it’s not possessed. So I’m afraid I haven’t really given you any good advice yet. Sorry. I’m not sure what the deal is.
Is the Character’s Movement Component set to use the WALKING movement mode?