MyCloud App android showing different content to MyCloud desktop

Help, please!
i have two PCs networked (cables) to the MyCloudDuo.
Both PCs see MyCloudDuo in network and both also see MyCloudDuo as a drive.
The file structure and content is identical on both PCs and in both network and drive arrangements

If i access MyCloud using my android phone app or using either of my PCs the file structure and contents are very different. It is as though i am looking at a 6month old version of the MyCloudDuo structure and content.

Any ideas would be gratefully received.