I have SkyDrive desktop client on my 3 pc's and 2 android devices

it seems like the same files for the Pc's never have the same files and folders on them

PC1 Home windows 8.1 always on and connected to the internet

PC2 Work windows 7 always on and connected to the internet

PC3 laptop windows 7

example I moved a folder from pc1 to skydrive and when I get to work onto PC2 the folder is not there.

this is common and I am not sure why this is happening. pc2 is connected to a work domain and the other 2 are personal home pcs

can someone provide insight as to why the same files and folders are not syncing between all 3 pc's?