home point re-positioning

I just received a replacement P4 standard RC from DJI as a warranty replacement (due to RC failure to take battery charge). Came with latest firmware. On 3 recent flights, never asked me to set the home point or calibrate the compass. Screen did say Home Point was set. I miss the turning in...

I've been reading a lot about the tendency for Phantom 3's to "automatically" reset the home point in flight - uncommanded! Resulting in the dreaded fly-aways, and in many cases, the last time the bird is seen. Now the questions are: Is this a firmware bug in the P3 which DJI needs to address...