Can’t go into it much but it may help to check your expectations against what may be happening in practice … perhaps a few ideas to look at from this thread, I can’t find an earlier one which is more generally about the fades iirc
anyway … food for thought … (there’s a few misunderstandings and I don’t follow what I was presenting tbh, but it may be worth browsing and considering how in practice the fade out can happen … keeping in mind that the process can’t fairly be expected after the recording has been ceased, sometimes dynamically stopped … see text later in )
whether any of this is helpful in regards to the audio editor is another matter and the practicality of creating silent loop-point transitions is covered in another thread iirc