Due to a problem of Intel® Quartus® Prime Standard Edition and Lite Edition software version 17.0 Update 2 or earlier, you may see incorrect data at odd address, when using the On-Chip Flash IP core in MAX® 10.
When reading data at odd address, you may see the data of the previous address.
This problem has been fixed in Intel® Quartus® Prime Standard Edition and Lite Edition software version 17.1.
Update your On-Chip Flash IP core using the software version 17.1 onward and recompile your design project.