Experiencing Unusual Proximity Sensor Behavior on Huawei P10 After Full Glass Installation

Hello.
Question as in the title. The phone has its original foil removed and in its place full glass has been fitted. However, I would like to point out that the symptoms I will describe in a moment did not occur after installing the glass and a few days later. I bought the phone 1.5 weeks ago. I played at home and everything was OK. I have a habit before I go somewhere with the phone to stick glass. There is a kind of novelty (at least for me) in the form of full screen glass, I put it on and it was still OK. The problem appeared after a few days. Namely, I make a call (it doesn't matter if I answer or make a call), put the phone to my ear and the display goes blank. Everything is nice, beautiful but after a while the display can turn on. I have to press the phone firmly to my ear to turn it off. It is enough to slightly weaken and trouble. I've never had it before.
I read on the internet, people write about trouble with the sensor, but the display usually turns off and I do not want to turn on. Mine, however, does what I described above.
Is there any way to calibrate this sensor?

Unfortunately, I have not heard about calibration.
As a rule, there is a problem like you describe that the display won't light up. In most cases, problems with the sensor start when something is covering it - all you need is tempered glass.
Does the glass have a hole in the place of the sensor?
If I didn't start by checking how it behaves without glass.

The glass seems to fit very well. Please look:

The glass is ok. The hole for the sensor is. Try to restore factory settings, and if nothing helps, the warranty only remains.

Strange thing. New phone. Bought 2 weeks ago and already broken? I will restore the settings but I can't do it now because I have too much on my mind and it is associated with arduous setting everything again. Thank you for your help!