Hello @LAn,
what version of the C/C++ analyzer do you have installed? Can you make sure you updated SonarQube bindings?
There might be some differences depending on your Eclipse project settings if it doesn’t pass correctly the configuration to SonarLint.
Could you please enable SonarLint verbose log and provide me such log? Thank you.
See this similar thread: Different results for SonarLint 4.1.0 vs. SonarCFamily 6.1 plugin