The "Avatar Interaction Override" and "User Actions" sections default to open when you select a player. If you had previously closed it, when you select a player, it is open, yet the arrow indicates its closed. To close it you must click twice in this state.
Repro:
  1. Select a player
  2. Close the "User actions" section.
  3. Back out of the selection.
  4. Select any player again.
  5. Notice that the sections are open again, but the arrow indicates they are closed.
Attachments:
Example video of this occurring.