Beoplay E8 2.0 fizzle

Hi!

I have a light (but annoying) fizzle in the left bud of an E 8 2.0 beoplay earset.

Tried to reset, re-pair, tried with other phones.....still there.

The fizzle is more evident in phone calls (understandably, there are more “silent” periodes).

Does anybody experienced something similar? Any advices?

Thank you!