IP Altera FIR filter 6.1 multiple coef set problem

Hi!

I created a FIR filter using Altera FIR IP v.6.1 (and Quartus v6.1).

The characteristics of my filter are:

-Rate specification : Decimation : 8

-Number Of Input Channels : 1

-Input Number System : Signed Binary

-Input Bit Width : 12

-Output Specification : Based On Method : Bit Width Only Full Resolution

-I enter two different coefficient sets with 32 coefficients each

-Coefficients Scaling Auto Bit Width 8

-Device Family : Stratix II

-Structure : Distributed Arithmetic : Fully Parallel Filter

-Pipeline Level : 1

-Data Storage : Logic Cells

-Coefficients Storage : Logic Cells

The problem is : the filter takes only the first coefficients set whatever the signal ("1" or "0") at the input "coef_set" of the filter.

I tried to create the same filter in Single Rate and it works well.

Why the coef_set selector does not work with Decimation?