Problem with calendar colour categories in iOS 7

Question

We are running Exchange Server 2007 SP3 and Outlook 2007 SP3. I have an iPhone 5 running iOS 7.0.4 connected to my Exchange account. When I edit items in Outlook and change the colour category, the updated item appears on my phone. However if I make a change to the updated item on my phone, the updated item appears in Outlook but with a different colour category.
Here's how I can replicate the issue:
In Outlook, create a new calendar appointment with the RED colour category labelled "Test 1"
The appointment "Test 1" appears on my iPhone
In Outlook, change the appointment "Test 1" label to read "Test 2" and change the colour category to GREEN
The updated appointment "Test 2" appears on my iPhone
On the iPhone, make any change to the appointment "Test 2" and save the changes
The updated appointment appears in Outlook, but with two colour categories selected when there should only be one
It's almost like the iPhone is picking up the colour category when the item is created, but if the item changes, the colour category value on the iPhone is not replaced with the new one. When the item is pushed back to Exchange, the category value differs from Exchange and is appended to the item on Exchange, thus resulting in two different categories.
This problem can be replicated on the iPhone 5 and iPad 4, on every user account.
I would appreciate any help on this one.

Answer 1

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YOu can send feedback here http://www.apple.com/feedback/