Time Machine HDD partitioning issue

I have a macbook with 2 physical drives installed. One with OS X and bootcamp (working fine), and another one with 4 partitions as follows, in this order

1. Back up OS X - partitioned HFS+
2. Data partition - partitioned HFS+
3. Time Machine partition - partitioned HFS+
4. Data partition - partitioned NTFS

As we all know, the bootcamp drivers allows us to see them all mapped under Windows. The issue is from time to time partition no.3 (Time Machine) becomes corrupted/unreadable under OS X, although it still works under windows for some strange reason.

Should I add some kind of buffer between the NTFS partition and Time Machine? I'm thinking it's maybe too much of a coincidence for the partition which is right next to the NTFS to become corrupted. Any ideas guys?

Thanks

p.s. it happened twice so definitely something going wrong

 

It appears to be fixed. What I did is move the Time Machine partition up to position 2, and add an empty space with disk utility (1GB - minimum I could do) between partitions 3 and 4.