P: Linear (non-standard) profile in LR Mobile

Custom profile is present.  When I initially look at the image, it is much brighter & washed out than image on desktop.  If I edit, browse the profiles, linear is selected (but obviously not being used).  If I select another profile, then re-elect the linear profile, the images changes to the way it should look.  If I switch to another image, then back to the first one, it has reverted to the bright, washed out look.  Somehow, LRM is not 'rendering' using the non-standard profile, except temporarily, when forced.

What is the exact error message you get? The method I described works to get custom profiles into Lightroom mobile. I use it all the time. But if the message is that the custom profile is present, but cannot be used, then something else is going on.

Johan...OK....I'm 'lost' 😀

I have loaded profiles to LR desktop and LRC desktop.  Images(files) are imported and 'developed' on LRC desktop using the linear (non-standard) profile.

My preferred method to get them to LR Mobile would be to create a collection on LRC desktop and sync them to LRM.  This, apparently, is not working.

what do I need to do?  

(Frankly, importing to LR (cloud) desktop and creating a workflow through it, is not, in my eye, a solution.  My alternative would be to 'Publish' via 'Smugmug' and totally avoid LRM for displaying/distributing the images)

Nope, that is not the problem. The problem is that profiles aren't synced from LrC, not that LrC sync only a smart preview. If you would upload the original file via Lightroom desktop, the profile would still not be available if Lightroom desktop does not have it installed.

I have many images in Lightroom mobile that have a special profile, even though these images were synced from LrC as smart previews. They still have the correct profile because I uploaded all my profiles (many of them custom made by me) via Lightroom desktop.

Johan stated,

“ You need to install Lightroom desktop and import them there. Then they will be synced to the cloud, so Lightroom mobile also has access to them.“

What you needed to do is import the original images to Lightroom Desktop on your computer, not sync the images from Lightroom Classic, Lightroom desktop will sync the original images to the Adobe Cloud storage and will be available to Lightroom mobile on your Phone or Tablet.

Lightroom Classic only syncs smart-previews to the cloud storage, and you will not have the profile you wish.

I did what Johan said.  Loaded profile to LR desktop.  Then sync's some test images from LRC to LR Mobile.  LRM recognized the linear profile.  However, the 'rendered' image did not reflect using the linear profile.  I browsed the profiles, linear was selected, switch to another profile, the back to linear....the image now looked proper (same as on desktop.  I went to next image which had same problem.  Went back to orig8nal image, which now had reverted to the initial, washed out (not using linear profile) look.  Same th8ng happened to 2nd image...and 3rd.

I also linked to images via browser link.  All of them had washed out look.

if I am doing something wrong I would appreciate guidance.  However, at the moment, I can only assume that LRM is using some profile other that the assigned linear profile for rendering image.

Lightroom Classic does not sync profiles. You need to install Lightroom desktop and import them there. Then they will be synced to the cloud, so Lightroom mobile also has access to them.