Read ZEDF9P GPS data into Simulink, using "Read Serial Data From GPS Shield Using Arduino Hardware '' Blocks

I am following instructions provided in the "Read Serial Data From GPS Shield Using Arduino Hardware '' tutorial to read GPGGA - and GPRMC data from a ZED-F9P GPS module connected to an arduino mega.

• I am able to read the data output from the GPS module in an arduino serial, and it is indeed only GPGGA and GPRMC code.
• Nevertheless , when running the simulink model, no data is received through the serial receive block.
• The GPS module baudarate is the same as the baudrate specified in the serial receive port settings.
• The COM port specified is also the correct one, port 1 .
• The tutorial sets the NMEA code data type as uint8 with length 32, i tried changing data type and /or length to no avail.

I believe the issue might lie in the fact that NMEA codes are strings , hence the data type is not recognized by the serial port . Any advice would be helpful, Thanks in advance .