You open the parent project directory, right? That's how the file access controls work in MacOS. Sandboxed apps can't read files outside their sandbox until the

You open the parent project directory, right? That's how the file access controls work in MacOS. Sandboxed apps can't read files outside their sandbox until the user opens the directory/file in the file picker at least once. (Or something similar, I can't seem to find a source on that...)