Many problems were discovered during operation

[Hugo-Xu-maker]

1. My GPS communication protocol corresponds to NMEA protocol version V410. Why is it that after running this program, only longitude, latitude, and altitude information are output, while speed and heading angle information are empty?

2. The NMEA of V410 includes GGA, RMC, and GSV. When I configured the RMC in the launch file to "True", I found that when I ran the program again, there was no data, and longitude, latitude, and height information were no longer displayed,

May I ask how to solve the above problems? I sincerely look forward to your reply;