Payroll element input validation error when Lookup is associated to input value field .

Summary:

Payroll element input validation error when Lookup is associated to input value field and Element input validation fast formula is associated at element eligibility level.

Have associated an Element input validation fast formula with a payroll element at element eligibility level.

The respective input value fields are not mandatory and can be left blank during element entry and at the same time it is associated with lookup to list out values .When we select blank as the value for the input field from the list of values, there is an error shown on the screen .Since we face issues ,at the moment in the FF we don't have any conditions for now except the one where we try storing the input value fetched at run time to local variables.