Unity not compiling script changes

I don't think looking at the script in the inspector is a good test for whether your code is being compiled. The inspector just shows you what's in the file rather than what's been compiled.

Sanity check : are you 100% sure you're editing the same file that's in the project and not using a copy?

Do you have any compiler errors showing up in the console? (hit clear to show just the compiler errors)