Pitch Faders- Strong sound degradation

After updating, the problem remains.
Load a 120 bpm track into deck 1.
Load track 124 bpm into deck 2.
Progressive house tracks, as an example.
Turn on Crossfade FX
Turn on Tempo Blend
Turn on Sync

Press Play on deck 1
After 2-4 bars, press play on deck 2
BPM 120 on deck 1
BPM 120 on deck 2 and percentage (-2.4%)

Move the crossfade to the side of deck 2.
Note that as soon as you start moving it, you will see a percentage of 0.0% on deck 1, at which point the sound may become distorted.
Move the crossfade further up to 0.2 - 0.3%. You’ll be able to hear the distortion too.
I noticed that as soon as synchronization is turned on and the crossfade is moved, we get distortion at the initial stage from 0.0 to 0.5% approximately.

Disable Crossfade FX and this problem will disappear.
The problem is that when we turn on Crossfade FX and Tempo Blend, Key Sync is turned on.
I think that because the program is trying to preserve the tone of the track during mixing we have such distortions.
I checked it on iPhone 12 Pro with and without Mixtour Pro controller - the error is the same.

I was playing in nightclubs of 500-1000 people and it was very frustrating. I had to turn off the effects to make the transition from one track to the next smooth.