Customer accounts are getting assigned to old strategy even though a new strategy is created and the

I have done the following:

Created a new set of strategies at the account level with change strategy set to YES and minimum tolerance set to "0'

End dated the old strategies.

Ran the Scoring Harness program and IEX Strategy Management with the parameter retain the existing strategy when score changes set to "No"

Post all this I see the customer account continues to get assigned to the old strategies.

Any direction on this would be immensely helpful.

regards

partha