This was an issue in BC Framer® software versions 833 through 8.4.0 and possibly versions before. Fixed in 8.4.1 and newer.
The red circle grip is missing, but the leader can still be moved.
- Select the label with the leader turned on.
- Move your mouse to the end of the leader until it changes to a cross-hair symbol.
- Left-click and drag the leader to the desired location.
Broken in version 8.4.0.
Fixed in version 8.4.1.