BQ24195L not charging

[okw]

I have designed a circuit with BQ24195L that will not charge. System pin outputs about 4.1V when VIN is 13.5V, and drops to Li-Ion (3.7V) when 13.5V is disconnected, so it's at least doing something.
The waveform, shows DC periodically drops to around 0V when trying to charge. I suspect the buck is unable to start (component selection? inductor DRC?).

I have followed the Typical Application on page 34 of the datasheet, but omitted Q1/Q2 circuit, Q3/R11.  OTG is not used and floating.

Inductor is a 2.2uH (3.3A, 68mOhms DCR).

NTC 10k with 5.6k/33k resistors.

I feed it with 13.5V and have a single cell connected.  Charge enable is pulled low.

I have read all the registers and see all conditions are ok, for example REG01[5:4] = 01. Watchdog kicks in after some time.

When I connect a multimeter in series, I see the battery is fed (charged?) 82mA, but in pulses. Cycles between 82mA for around 2-3 second, then drops to 0mA for a few seconds). Same behaviour can be seen in the waveform on the SW node. I attached both DC and AC waveforms.

I've also asked in the TI forum, but maybe someone here has ideas?