Why doesn't the NCO IP output start from Channel 1 in some cases of multi-channel implementations?

Starting in Intel® Quartus® Prime software version 16.1, of the NCO IP Core, the multi-channel behavior differs than described in the documentation.  For multi-channel implementations over 3 channels, the data is initially output out of order.

An example behavior of the IP based on different multi-channel implementations is described below:

3 Channels: CH3, CH1, CH2

4 Channels: CH3, CH4, CH1, CH2

5 Channels: CH3, CH4, CH5, CH1, CH2

6 Channels: CH3, CH4, CH5, CH6, CH1, CH2

The NCO IP Core outputs valid data after the initial incorrect data order.  Please ignore the first N-2 data values where
N is equal to the number of channels.

This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime software.