Error Message when posting Mass Additions with Depreciation Reserve

Hi

We are currently trying to load assets in a test database, with a depreciation reserve, via the Additions integrator. We are getting the error message :-

You cannot assign reserve to an asset placed in service in the current period.
Mass Addition ID: 21003 ==> ** Failed **

When trying to post them.

Current Assets Period Apr-09

DPIS of asset 01-APR-08

Prorate convention - Following Year.

We are a UK Local Authority and have had consolidated patch 12810804 applied recently to resolve a revaluation loss issue.

Why can’t we load accumulated depreciation when the Asset is clearly DPIS in the previous year?