AAI Error = Acct # in AAI Table 4124 Invalid - Flex Accounting and MCUS field value

I valued the Project Number (MCUS) under Enter Change Business Units (P0006) with a code to temporarily allow a specific IA transaction to flex into a specific account and it worked.  Upon removal of the Project Number that I valued, I am recieiving AAI Error = Acct # XX.XXXX not found for other IA transactions.  It appears that the value I once entered, somehow is still being read by JDE.  I have cleared cache and my problem is not resolved.

Example:

First Account  = 61.1301

Second Account = 60.5205

Original Set Up = AAI 4124 is currently set up to Flex in BU from MCUS field.  MCUS field in P0006 is normally blank, so IA transactions would default to the BU where the IA is performed, in this case, BU = 60.