I have a MBL 2 TB and I have placed about 30 folders containing between 10 and 300 photos in the shared photos file. The folders and the photographs show up in My Cloud etc. However whilst all of the folders show up in WD Photos not all of the contain photographs. Most of the folders are empty or contain only a handful of photographs. Only two of the folders contain all ofthe photographs. What have I done wrong.
Have you tried re-scanning the library?
See if the following link helps.