Remove Hierarchial Select item from a Field Collection

Not sure if this is an issue with Field Collections or Hierarchical Select, so will post in both in the hope that someone else is experiencing the same issue and the community can assist.

FC = Field Collection Group
F1 = text field
F2 = Hierarchical Select

Now I add a new item:

FC1
- F1 = 1111
- F2 = Banana

FC2
- F1 = 2222
- F2 = Apple

FC3
- F1 = 3333
- F2 = Pear

Save and this works. PROBLEM is when I remove an item, for example if I remove FC2 you would expect the result to be:

FC1
- F1 = 1111
- F2 = Banana

FC3
- F1 = 3333
- F2 = Pear

Instead the result is:

FC1
- F1 = 1111
- F2 = Banana

FC3
- F1 = 3333
- F2 = Apple (not Pear)

Whilst the correct text field item is removed, it's always the last (newest) Hierarchical Select field that is removed regardless of which field collection group is deleted.

I hope this makes sense and the wonderful developers that maintain this module may be able to shed some light and hopefully patch. I'll add this same issue to HS.

Thanks in advance!