LOWDIN_POPULATION and HF

Questions
#1

I tried to calculate Löwdin charges for the HF wave function as follows:

$molecule
0  1
O          0.00000        0.00000        0.11779
H          0.00000        0.75545       -0.47116
H          0.00000       -0.75545       -0.47116
$end

$rem
GUI = 2
SYM_IGNORE      true
JOBTYPE         sp
BASIS           6-31++G**
METHOD          hf
LOWDIN_POPULATION true
MEM_STATIC      2000
MEM_TOTAL      165000
$end

However, there are (only) Mulliken charges in the output:

          Ground-State Mulliken Net Atomic Charges

     Atom                 Charge (a.u.)
  ----------------------------------------
      1 O                    -0.711941
      2 H                     0.355970
      3 H                     0.355970
  ----------------------------------------
  Sum of atomic charges =     0.000000

Could you please explain how to get HF Löwdin charges?
I’m using Q-Chem 4.4.

#2

This is described in the manual,
https://manual.q-chem.com/latest/subsec_pop_anal.html
Set LOWDIN_POPULATION = TRUE. Currently, what you get are Löwdin populations for each occupied MO, which you must sum yourself. (Set POP_MULLIKEN = 2 to see the Mulliken charges in the same format, for comparison.)

#3

Thanks.
I have used
LOWDIN_POPULATION true (see original input here: LOWDIN_POPULATION and HF).
But there are neither Löwdin charges nor populations for each occupied MO in the output…
[There are only Orbital Energies, Ground-State Mulliken Net Atomic Charges, and Cartesian Multipole Moments.]
Any ideas? (I’m using Q-Chem 4.4.)