SOLVED: Synced images not displaying correctly on LR CC Mobile and Shared Libraries

Hello
I’m new in NLP and synchronization with LrC.
3 years after the last post in this topic, are there new solutions ? The Smart Previews synchronized after NLP conversion are unusable : too dark, too much deep blue….
NLP works really fine and I would like to share easily the results.
Thanks a lot in advance
Benoit