P: "Black & White Mix" missing from copy settings and synchronize settings dialogs

If trying to sync a BW profile to an image that had the Black & White Mix intentionally zeroed out, the B&W mix won't even sync the Auto settings.  

There doesn't appear to be a way to get back the auto B&W mix settings once they were intentionally zeroed out/reset.  UGGG

One more question. What is the expected behavior of the black & white mix when a B&W profile is selected?  When I select a B&W profile, it appears to set the B&W mix to an auto setting that varies between images.  If I double click on "Black & White Mix" to reset it to all zeros, and then select any B&W profile, the B&W mix is no longer affected for that image.  However, syncing the B&W profile ALWAYS results in syncing the B&W auto mix, whether or not it was zeroed out or had settings that were NOT auto.  It seems to me that the purpose of a profile is to gain an effect, but still have zeroed out develop settings throughout the panel.  Which is why I am not sure that this is the expected behavior of the BW profile... 

Since it is not made clear that the B&W profiles are related to the B&W mix settings (at least currently), it is most likely misleading people who are intending ONLY to sync the Profile as their B&W mix settings will be affected as well, perhaps unknowingly.  Not only that, it is not immediately apparent that a B&W profile is an "AUTO" setting, so that after syncing every image has different B&W mix setting, regardless of whether the initial image had the B&W mix settings zeroed out or not.  I would expect Monochrome to have an auto B&W mix, but not the other profiles.  Syncing using AUTO settings is always a touchy thing, and I generally prefer to sync exact numbers for similar exposures/settings.  If I were syncing a B&W mix, I would sync it exact, NOT the auto B&W mix settings.  If I were syncing a profile, I would expect every setting to be exactly the same as the first selected image, because I did not know anything was on auto.  

How long do you think it'll be until it's fixed?  The suggested workaround by creating presets isn't going to work for the amount of B&W mixes I'm updating throughout my catalog.  

Thanks for reporting this one. We are working on it.
Keep up the good work !

Experiencing the same problem. I cannot seem to find the link to the "submit bug report" form for Lightroom Classic CC. What's the procedure to notify Adobe of the bug?

Not being able to sync the b/w mix is a real issue for me.

And for me too. A workaround is to create a new preset.

It seems in Adobe's quest to add presets they have forgotten that photography professionals depend on these tools on a daily basis.    I am generally pretty good at finding work arounds to get my work done.   Seems lately in Adobe's rush to introduce new features they are missing a big step in delivering a quality product.  Since the Name Change to Lightroom Classic CC each iteration seems to have more bugs than were fixed in the previous version.   Somehow I expected Adobe to tread lightly and be a bit more cautious  with Lightroom Classic CC.   I guess I was wrong.     Not being able to sync the b/w mix is a real issue for me.

This is clearly a bug, probably introduced by the new Adobe Monochrome profile.

There's a similar problem with the Previous button which doesn't apply slider values.