Quick move within inventory drops held items

Pressed "triangle" to open inventory. 

Selected stack of coal.

Placed 2 coal back into inventory. 

Pressed "triangle" to quick move 2 coal in inventory to inventory bar. 

Items are dropped from stack in hand.

2 items in inventory remain. Nothing is quick moved. 

 

"Quick Move" is "Dropping" held items instead of quick moving from inventory ( or to inventory).