ITunes :: Cannot Sync Multiple Albums

I've just found out that I can not properly put my music on both iPhone 4S and iPad (iOS 5.1). 

try do the following and place the result here whether you see same behavior.

Steps:

1. Enable Manual sync on you iOS device;

2. Drag and Drop any album from your library to iPhone -> songs start to transfer;

3. Now, while songs are transfering get another album and drop it to your iPhone;

4. ISSUE IS THAT: you should notice that the transfer of the first album is interrupted and the latest album is transferring ONLY;

So, at the end you have just several songs from first album and all songs from the second one. So, basically each new album you drag and drop interrupts previous transfer.

Info:iPhone 4S, iOS 5.1