In version 11.1.46243.0, TaxCycle T3 does not populate the document control number (DCN) in Part D when printing the T183TRUST form.
When you EFILE a T3RET or T3RCA, however, TaxCycle generates the DCN and inserts it into the correct field. It is only when printing that the DCN field is blank.
This issue was resolved in the latest TaxCycle release.