TIDA-01418: LM5160QPWPRQ1 Fly-Buck-Boost Grounding Question

Part Number: TIDA-01418
Other Parts Discussed in Thread: LM5160

Schematic for Power Supply of TIDA-01418 shows pin 4 of FlyBack transformer is grounded while Pins 1, 2 and 15 are floating.

Datasheet for LM5160 IC shows exactly the oposite.

In my opinion, the GND connection on pin 4 of the transformer should be where TP101 is.

(Schematic view).

Please confirm. 

If this is true, is there an updated version for the schematic and the Gerbers ?

Thanks a lot.

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