When a constituent has multiple interests of the same type, the comments for each are overwritten with the comment of the top most interest of that type when a Constituent Update Batch is committed.
We are currently evaluating this issue for a fix in a future service pack.
Steps to Duplicate
1. Create a new constituent or open up an existing one. 2. Go to the Personal Info > Personal tab on the constituent record. 3. Under Interests, add 4-5 interests with the same type and enter a different comment for each of them. 4. Go to Constituents > Batch Entry. 5. Add a new batch using a Constituent Update Batch. 6. Populate the Constituent field in the batch with your constituent from Step 1. 7. Validate the batch. 8. Save and close the batch. 9. Commit the batch. 10. Navigate back to the constituent record from Step 1. 11. Go to the Personal Info > Personal tab. 12. The comments of the Interests below the top Interest have been overwritten with the comment of the top Interest.