Retirement Accounting Entries on Converted Assets

When converting Assets, the Accumulated Depreciation comes over as an 'ADD' transaction.

When I try to Retire any of these Assets, the Accumulated Depreciation is relieved only as a Loss on Sale, instead of a Debit to Accumulated Depreciation.  Is this because it is on the Depreciation table as an 'ADD'?  Could there be something we did incorrectly in the conversion, or doing something different in the Retirement process?

Thanks.