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LM2642: LM2642 does not start.

Part Number: LM2642
Other Parts Discussed in Thread: TEST2

Dear all.

LM2642 of 3/1000 does not start.
Schematic is;

Schematics_20180406.pdf

And waveform is;
              

1ch:VIN=13V
2ch:VOUT=3.3V
3ch:ONSS
4ch:VU_DELAY

Device number No.1 : Can't output ch2(5V).
No.2 : Can't output ch1(3.3V).
No.3 : Can't output ch2(5V).

I pointed out ONSS1 and ONSS2 is connect, but the symptom did not change even if I separated.

TEST1:
They connect UV_DELAY to GND.
No.1 and No.3 are not work.
No.2 is work.

TEST2:
They change FET(new) of No.1 and No.3.
No.1 is not work.
No.3 is work.

TEST3:
They said that they became the same waveform when they remove Boot Strap Diode of the device which worked.
So they removed No. 3 Boot Strap Diode. No.3 is not work.
And they put diode back again. and change new FET.
However, No.3 did not work.

Are there a register or Flip Flop that are not reset even if turned off?

Please teach me what I should confirm about this problem.

Best Regards,
PAN-M