How can we generate complete asset retirement journal entries?

We upgraded from 11i to R12 approximately one year ago.  The journal entries generated through the "Create Accounting" process have never been complete.

The journal entries typically contain only two lines even when multiple funds and asset types have been retired.  The gain/loss entry lines are never included.

The "Create Accounting - Assets" process and the "Accounting Program" process that are part of the "Create Accounting" request always compled in Warning mode.

I have tried searching for a solution but have not come across one.  Any help would be greatly appreciated as we currently have to manually complete all retirement journal entries.