@Thierry-Fredrich @Taylor-Alexander Thanks for your suggestions. I have checked these two apps.
1、RAWDATA is ok. I think you should check your OpenRTK-base-library version in the file path 'RAWDATA.pio\libdeps\OpenRTK'. Version 1.0.6 is ok. If the version is not 1.0.6, you should delete the OpenRTK-base-library and build the project again. It will auto pull OpenRTK-base-library@1.0.6 which is set in platformio.ini.
2、RTK_INS has problem with OpenRTK-base-library@1.0.8. We will fix this in the next released version. Or it can be solved by next steps:
0)、delete 'RTK_INS.pio\libdeps\OpenRTK'
1)、clone the newest OpenRTK-base-library at https://github.com/Aceinna/openRTK330-lib
2)、remove the line 'lib_deps = OpenRTK-base-library@1.0.8' in 'OpenRTK330LI\RTK_INS\platformio.ini'
3)、copy the newest OpenRTK-base-library code to the file path '\RTK_INS.pio\libdeps\OpenRTK\OpenRTK-base-library\'
4)、build project

@Taylor-Alexander It has connected ntrip server but never get rtcm data.
1）、OpenRTK330L EVK support NTRIP1.0. Check the NTRIP client setting again and note that the mountpoint don't need '/' at first letter. Because the first '/' will be writed in software.
2）、If possible, you can catch communication logs with network tools like 'Wireshark'.