In Photoshop, try File > Export > Quick Export as Jpeg. It creates a separate Jpeg copy of your original.
File > Export > Export Preferences to set jpeg, quality and Metadata.
Thanks for your help
To explain why:
Jpeg is a very limited file format. It has a very limited set of supported file properties. It cannot have layers, it cannot have transparency, it cannot have alpha channels, it cannot be 16 bit color depth, and so on and so on. You can't do much to a file before it's outside the jpeg specification. A file sent from Lightroom to Photoshop is already outside by being 16 bit color depth.
When that happens, the file cannot be saved as jpeg. The format cannot contain it all.
So Photoshop saves out a flattened, feature-stripped, 8 bit copy. The original file is still open, unattended. To save that, you may need to do so as TIFF or PSD.
Thank you makes perfect sene!!