Two way radios (Kenwood) - any expert hams here?

Hoping some of the Kenwood experts can assist here.

I have this issue with my Nexedge 720 that I’ve been unable to resolve. I suspect it is a setting somewhere but I cannot figure it out.

When switching the radio on, it will not receive any transmissions until I ptt the radio first.

It’s as if it’s in some sort of “do not disturb mode”. Once I ptt it, it receives signal on all programmed frequencies.

Can anyone shed some light on this please?