Sync issues with iPhone 6 Plus and iTunes

I'm having issues with syncing my iPhone and iTunes.

I am running: Mavericks 10.9.3 | iTunes 11.4 | iOS 8.0.2

Every time I try to sync my iPhone 6 Plus with iTunes, the sync process gets stuck on step 5 of 5 (waiting for changes to be applied). The longest this has occurred for is 2hrs. After this time I have stopped the sync and ejected my iPhone.

I had another issue with my phone when playing music. When going to play music, I was given the error message saying that the song could not be found. I connected my iPhone to iTunes and went to the tab in summery page, 'on this iPhone'. I found the song and could see that next to the song was a small what looked like dotted grey circle. After Googling this, I found a video saying that if i was to remove all my music and then add it again, this should fix the problem with this song. I did this and this was when the issue occurred again.

I unticked the option to remove all music but the sync did not finish. So I cancelled the sync, ejected my iPhone and tried again. This time, the summery page of my iPhone said there was no music on my iPhone and the 'on this iPhone' tab, this all so said there was no music however, my music was still on my iPhone including the song that would not play. All played ok.

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I have read lots in the Apple forums about lost of difference reason this may be happening. Things like bugs in iOS 8, app updates being transferred during the sync process, the latest iTunes version has bugs and even a dodgy USB cable could cause it. My iPod running iOS 5 syncs all ok but I get this problem as well on my iPad Air.

I all so had this issue with my old iPhone 4S. The problem occurred when running iOS 7 and 8 on the 4S. When I had it on the 4S, I did a restore of the 4S 4 times and thought I had found the issue down too a dodgy app. However, now that it has happened on my new iPhone and still not using that app, could this be an issue with my Mac/iTunes?

I am in contact with Apple Care, but this is such a long process.

So if anybody could please offer any advice on this or steps to try to maybe solve the issue, it would be really helpful. Or if anybody is experiencing the same problem, it would be good to know its not just my devices and Mac producing this sync problem.

I will update my post with any information provided by Apple Care as and when I get it.

Thanks for reading and thanks for your time.

Mark. 🙂