In Hei en Nevel all pictures have a title, just go over them with the mouse, I see in the app in some pictures a title
Not all the pictures have a title (a caption). Where there is a caption, those are shown as titles in Photonic. E.g. This photo has a caption, so Photonic shows a title of “gras winter sfeer 018”. However, this photo does not have a caption (it only has a file name), which is why Photonic says “View”.
Photonic relies on the “Caption” for the photo – it will not display the file name. For the first photo that I linked above, you have set a caption of “gras winter sfeer 018”, but you have not set a caption for the second photo.
Basically Photonic takes the caption from SmugMug’s API and shows that. If you look at the SmugMug API call for this album, the first few photos have captions – you can expand any of them, and you will see that “Caption” says something like “hei winter gortel0046” and “FileName” says “hei winter gortel0046.jpg”, but click on the node that says “AlbumImage [6 of 40] /api/v2/album/xMZhPf/image/HGsKqNc-0” – for that caption is blank. That is why you are seeing “View” for it.