Blender Animation. Rig Problem

Hi guys! I am a beginner animator.

  1. I want the arm to rotate normally, meaning only one side would rise and the other would be stationary.
  2. The problem is that the hand moves to the middle of the character, but it needs to rotate around an axis, that is, it should not twitch, but rise normally.
  3. I did not find a solution.

Video: Desktop 2025.04.16 - 02.25.07.01.mp4 - Google Drive