Is MeetingUI_MoveFloatVideoWnd still working?

Description
Does MeetingUI_MoveFloatVideoWnd still work? In the demo app (on Mac) the button for it is commented out. It is still in the documentation though. Tried running it manually but it returns error code 2.

Which Electron Client SDK version?
Electron SDK, current version

To Reproduce(If applicable)
Steps to reproduce the behavior:

  1. Run MeetingUI_MoveFloatVideoWnd() on an electron app in Mac.
  2. It returns error code 2