In this gallery, https://lucnadeau.ca/galleries/techniques-mixtes1/ , you will see there is no name under the top left image. But in large image view, the name appears. Why is this? And why all the hyphens between the words? The other images do not have this,
First, it looks like the file name has a period in it:
Je-peux-reĢsister-aĢ-tout-sauf-aĢ-la-tentation.OW.jpg
File names should only contain letters, numbers, dashes, and underscores.
That period could be affecting the code making the rest of the caption to disappear because periods have meaning in code. Just a guess.
Secondly, it appears that your photo caption is using two metadata fields: āTitleā and āCaptionā and that image appears to be missing the title so the image filename is being used (thatās why you see the hyphens)
Also, I cannot vouch for the accented characters in the file name. Might be safer to use the plain variants of the letters.
SOLVED. It wasnāt that the name was too long nor that it had accented characters, it was that I failed to put the title in the ātitleā box in Lightroom.
Allās well now.