Profile/Preset Syncing across the Lightroom CC Ecosystem was added in the 1.4 release. Automatic syncing is not included in Lightroom Classic CC 7.4 but is now possible manually.
Which folder do you find that profile in on the desktop? You'd need to select the same folder on mobile. And don't forget it'll only show up in certain file types, depending on how the profile was created.
If they don't show up, force quit the app and restart, as that seems to be doing the trick for missing profiles.
_______________________________________________ Victoria - The Lightroom Queen - Author of the Lightroom Missing FAQ & Edit on the Go books.
Ok, so it seems whilst the images were rendering correctly the profiles were not imported. I manually imported them, from the Adobe/Camera Raw/Settings/ folder. I thought it was supposed to auto import those. They are now appearing as expected in the mobile app as well as the LR CC desktop.
Interestingly the image in the profile preview on mobile looks correct but the rendered image does not match. It is using a colour lut to flip red to blue and blue to red (for a colour IR camera)
I would be nice if Adobe made it possible to sync all presets to the cloud, so a it's possible to use them on computer 2 or at a reinstall without manually copying them, from their folders.