help me please with recording trouble

[kallibr44]

i know what this issue is not about autowx2, but i don't know where i can ask this.

I have problems with recordings - all recordings were problematic: the spectrogram of all passages of all satellites looks like in the screenshot and as a result, all recordings have a couple of centimeters of noisy image in the center, but if I receive via SDRSharp on the same equipment using rtl_tcp, then the signal is good and the picture is obtained good. What could be the problem?

P.S. Also i'm tried to tune gain value and frequency correction (setting 137.095 instead of 137.100 for noaa19), but it was unsuccessful.