Bugs: if I multi-select the grandchild nodes (Including lower-level nodes) in the rightmost pane, they become covered and cannot be moved with the mouse

For now, if I multi-select the grandchild nodes (Including lower-level nodes) in the pane, they become covered by the item action buttons that appear in pane layouts and cannot be moved with the mouse.

Zoom is 175% or 200%.

Only the rightmost pane is abnormal; the rest are normal.