chokidar: Watching network drive '\\server\folder' does not work

Hi I have a problem where chokidar does not report changes to network shared folder, i.e. \\\\file.server.net\\dev\\7500. Using fs.writeFile() on that folder works fine and a file gets created by Node. I’m under Win10. My config is below. I tried both with usePolling true and false, no change. I don’t get any errors, just changes to network folder don’t get reported. Watching a folder on local drive C:\db works fine. Watching that network drive using drive letter path format actually works too s:\\dev\\7500. I’d prefer to use server path notation in case drive mapping letters get changed in future, or some users in the company have different letters mapped.

Do you see anything amiss in my setup?

fs.writeFile('\\\\file.server.net\\dev\\7500\\test.txt', 'this file gets created OK', (err) => {
  if (err) throw err
})

const chokidarOptions = {
  persistent: true,
  // ignored: "*.txt",
  ignoreInitial: false,
  followSymlinks: true,
  cwd: ".", 
  disableGlobbing: false,
  usePolling: true, // tried with false as well
  interval: 1000,
  binaryInterval: 3000,
  alwaysStat: false,
  depth: 99,
  awaitWriteFinish: {
    stabilityThreshold: 2000,
    pollInterval: 100,
  },
  ignorePermissionErrors: true, // watch files that don't have read permissions
  atomic: true, // or a custom 'atomicity delay', in milliseconds (default 100)
};

const optionsFileMonitor = {
  watchFolders: ["\\\\file.server.net\\dev\\7500", "s:\\dev\\7500", "C:/db"]
};

const fileMonitor = chokidar
  .watch(optionsFileMonitor.watchFolders, chokidarOptions)
  .on("all", (event, epath) => {
    console.log(event, path.resolve(epath));
})