"crackling" distortion

[Guitarzan38]

Hey there. Silver member here since last year.  I, too, am experiencing significant "crackling". I do not hear it while playing, but it is apparently quite steady to those I play with. One of them recorded it (link below) so I could hear it and use it as an example. I have tried changing my frame size and it seems to behave the same. 

Hope this link works... 

https://www.dropbox.com/s/38ydyw2pr9q63e...6.wav?dl=0

Also, this is my path...

Guitar->
pedal board -> 
RNP8380 Preamp->
XR18->
2014 MacBook Pro (Running Catalina) ->
Jamkazaam

using an XR18 amp modeler for a bit of break up.

Any suggestions from you JK gurus?