Create an invoice in Org HQ and then try to receive payment in bank account belongs to organization Fertilizer. Use currency other then accounting schema currency.
It throws null pointer from
FactLine.convert from below code
if ( m_doc instanceof Doc_BankStatement || m_doc instanceof Doc_AllocationHdr )
convDate = m_docLine.getDateConv();
This may happens when system try to balance source on org posting.
Triaging this ticket