During a raid, the Ravengers will just sit on a mountain and not attack
Linked issues
Comments 4
Because he's trying to get down the hill but can't, and doesn't try to attack you in the process. That is MC-137579.
Not only during raids! Ravengers also won't pathfind when stepping on half blocks such as stairs...
attaching clip from the latest 1.19 version:
https://youtube.com/clip/Ugkxm7F_Gg9M4UXItXsnImtRvcXfKhIlMhRz
Does MC-137579 describe your issue?