P-MOSFET always conducting

I have this cirucit I designed for my PCB.It has a P-MOSFET (Si2347DS-T1-GE3) - https://www.vishay.com/docs/62827/si2347ds.pdfconnected to two resistors and a capacitor.

The idea is that with the signal PWR_SENS coming from the microcontroller, I should be able to make the +3V3sens = +3V3 or +3V3sens = 0 V.This is used to power up some sensors.

What I have found is that, with PWR_SENS = 3V3, the mosfet (Q20) is conducting (?) and I can see 3V3 at the drain (so at +3V3sens).This was not the behaviour I expected. I was expecting the transistor to not be conducting as Vgs=Vg-Vs=3.3-3.3 = 0V, and the Vgsth in the datasheet is indicated to be -1V.

I had a spare Si2319CDS mosfet, I tried soldering this one to test if the Si2347DS was broken, but I got the same result.

Any help on this issue would be greatly appreciated!!

Thanks