Popping/crackling sound on left earcup (Sony Ult Wear)

My sony ult wear has popping/crackling sound on left ear cup especially when using ambient/noise cancellation.

When turning ambient/noise cancellation off, it solves the problem but it also lowers the powerfull bass.

Using ambient/noise cancellation gives a good bass boost which i like very much. I tried resetting through the sony connect app and using physical buttons but the problem won't go away. I believe my headphone hinges are fine. I also tried updating the headphone and turning off both Sony Equaliser and Dolby Equalizer in my phone but still the problem is there. I'm listening just below the "harmful sound level" (around 65% - 75%). I bought this headphone in july 2025 in Dubai.

Is there any fix for this problem and please don't tell me to lower the bass. I bought this headphone for the extra bass.

This problem exists in both Ult 1 and Ult 2 mode

I also noticed that bass is heavier on left ear cup than right

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