Run the Design manager on a schematic, refresh the Components view and scroll down to find that Q4 has no package assigned to it! Click on Q4 in the list to bring it into focus:  Click on the empty Footprint attribute field in the right hand panel to open the Footprint Manager:  Search for, select and check the pin mappings of the desired footprint:  then press Update and then Cancel to close the Footprint Manager. Refresh the Components View in the Design Manager to see that the device now has a properly assigned footprint!