Question [Q] Proximity Sensor Issue

I've noticed that the proximity sensor seems not to work properly anymore. The screen will turn off when near the ear during calls and turned back on right away when I took it away from my face just a little. Now it seems that the screen stays turned off for a longer period of time when taking it away from my face, I have to hit the power button to turn the screen on and sometimes multiple times. I never dropped my phone once, and my phone was never rooted with a custom rom it was all stock. Is anyone else having these issues? I have even changed the Power ON OFF Cable flex Proximity Sensor. I did a diagnostic *#*#3424#*#* P-sensor but when I cover the sensor only the lights menu turns on the screen doesn’t get black.
Thanks for help