Recently got a new iPod 4th gen; I had previously backed up to iCloud and subscribed to iTunes Match, and then wound up syncing the new iPod to my MacBook Pro; all iCloud tunes were downloaded to Mac but won't all sync to the iPod - any suggestions?

Question

Recently got a new iPod Touch 4th gen; I had previously backed up to iCloud and subscribed to iTunes Match, and then wound up syncing the new iPod to my MacBook Pro; all iCloud tunes were downloaded to Mac but won't all sync to the iPod after multiple attempts, despite all songs showing properly on the Mac and multiple syncs occurring after all songs were properly reflected on the Mac.  I updated iTunes Match from the iTunes Store menu as well pre-sync.
I should mention that I had previously had the library on a Dell (which is still running) and shared it on my home network.  While all iTunes purchases now show in the Dell, the Mac is the device I use for all syncs. 
There appears to be no rhyme or reason to the iCloud physical sync failure - some songs were legacy, some were purchased via the PC, some on the old iPod.
The Mac shows all the songs correctly and none show iCloud status -all have been downloaded, but the downloaded songs that were previously showing up as iCloud based aren't syncing to the iPod.
Is there any way to force all music being seen by my iPod as iCloud to download to so I can listen to them offline?  Is there a way to force the sync from iTunes?

Answer 1

The "system" performed as designed. All devices syncing to one iCloud account are kept in common sync. The idea is that all such devices belong to one user. Different users should have different iCloud accounts.  Once your contacts were edited, all devices were updated as well and subsequent backups (from yours and her device) reflected the changed contacts (and any other data that may have been edited like calendars). Your first task is to change your daughter over to a new account before she makes other changes.
The only way I see for getting back contacts is to restore them from a time machine backup, assuming you also have a Mac included in the account which syncs the contacts. However, I'm not sure whether time machine includes contacts from iCloud along with those that are local, "on my Mac".
Otherwise the deleted contacts are gone.