Why does the inverted triangle in the upper right corner of VS Code disappear in less than 1 second after opening a. cpp file

[GTRHFUT]

c_cpp_properties.json
launch.json
settings.json
tasks.json

[sean-mcmanus]

@GTRHFUT Are you referring to the Debug C/C++ button? I'm not sure why it would disappear. We don't have a repro that. It's possible you could debug it by putting a breakpoint on the 2 spots in our open source typescript that call SessionState.buildAndDebugIsSourceFile.set(false); -- i.e. if the document were not using a file schema or were not recognized as being C/C++.

[GTRHFUT]

I have found the reason. After updating the C/C++plugin with version 1.24.5, the Debug C/C++button will flash and disappear. Just go back to the previous version, it may be due to some changes in the new version of the C/C++plugin