New RN4X MIDO 10.1.1 rom stable calling loudspeaker bug! Dirty Sound.

[Nino Matas WORLD]

Hi, just reporting that during calling if connected the loudspeaker for freehands conversation, speaker sounds with lots of background sound, real dirty. Its real bad... In Global 10.1 was ok, so its not hadware.
Any sugeestions for this? Or iwait for next update?
Thank you all.