A Microsoft file hosting and synchronization service.
Hi, @Lashlarue
If the description is saved in the photo’s file properties or metadata, OneDrive should sync the updated photo file. However, captions or tags added only through the OneDrive website or another Photos app may not appear in the file properties on your computer. OneDrive also uses its own photo-tagging system.
By “photo file description additions,” do you mean the Title or Comments under Properties > Details in Windows, or a caption or tag added on the OneDrive website?
Where are you adding the description, and where are you expecting it to appear?