Unfortunately NTO is not supported for spin-flip case.

I want to use Multiwfn to generate NTOs for SF-TDA states in ORCA.  The problem I'm having is that the singular values are all 0.  I figure this has something to do with it being SF-TDA as opposed to regular TDA; I've successfully used Multiwfn for the latter many times.  I'm following the same steps I use for regular TDA, should I be doing something different?

Here's an example output:

Summary of excited states:
State:    1    Exc. Energy:  -0.058 eV   Multi.: ?    MO pairs:   22280
State:    2    Exc. Energy:   0.019 eV   Multi.: ?    MO pairs:   20053
State:    3    Exc. Energy:   0.578 eV   Multi.: ?    MO pairs:   22215
State:    4    Exc. Energy:   1.765 eV   Multi.: ?    MO pairs:   18903
State:    5    Exc. Energy:   1.830 eV   Multi.: ?    MO pairs:   18054
State:    6    Exc. Energy:   1.926 eV   Multi.: ?    MO pairs:   16279
State:    7    Exc. Energy:   1.997 eV   Multi.: ?    MO pairs:   18846
State:    8    Exc. Energy:   2.207 eV   Multi.: ?    MO pairs:    9096

Perform the analysis for which excited state? e.g. 2
1
Loading configuration coefficients of excited state   1...
Sum of square of excitation coefficients:  0.999937
Negative of the sum of square of de-excitation coefficients:  0.000000
Sum of above two values:  0.999937
Deviation to expected normalization value (1.0) is  0.000063
Involved highest unoccupied alpha orbital:   141 (alpha HOMO+     0)
Involved highest unoccupied beta orbital:    815 (beta HOMO+    676)

The highest 10 eigenvalues of alpha NTO pairs:
    0.000000    0.000000    0.000000    0.000000    0.000000
    0.000000    0.000000    0.000000    0.000000    0.000000
Sum of all alpha eigenvalues:  0.000000

The highest 10 eigenvalues of beta NTO pairs:
    0.000000    0.000000    0.000000    0.000000    0.000000
    0.000000    0.000000    0.000000    0.000000    0.000000
Sum of all beta eigenvalues:  0.000000

Sum of all alpha and beta NTO eigenvalues:  0.000000

thanks!