Description
Due to a problem in Intel® Quartus® Prime Pro Edition Software version 17.1, you may see the Resource Property Editor does not show the fast output register as enabled even though it is used. This problem occurs on design targetting Stratix® 10 devices.
Resolution
The correct information is displayed in the compilation report under section Fitter > Plan Stage > Output Pin > column Ouput Register for the specific pin.
This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 18.0.