Not picking up all files

[darcys22]

gulp-usemin: 0.3.14
gulp-add-src: 0.2.0

I am trying to add my partials files with addSrc but within usemin it wont pick up all of them

gulp.task('without', [], function () {
return gulp.src(['public/assets/images/**/*','public/index.html'])
  .pipe(plugins.addSrc(['public/partials/**/*.html']))
  .pipe(plugins.debug())
 });
gulp.task('without2', [], function () {
return gulp.src(['public/index.html'])
  .pipe(plugins.addSrc(['public/partials/**/*.html']))
  .pipe(plugins.debug())
});
gulp.task('works', [], function () {
return gulp.src(['public/index.html'])
    .pipe(plugins.usemin({
        templateCache: [
            plugins.addSrc(['public/partials/**/*.html']),
            plugins.debug(),
        ]
    }))
});
gulp.task('broken', [], function () {
return gulp.src(['public/assets/images/**/*','public/index.html'])
    .pipe(plugins.usemin({
        templateCache: [
            plugins.addSrc(['public/partials/**/*.html']),
            plugins.debug(),
        ]
    }))
});

Without gulp-usemin I can get the files loaded fine, however within it if I have an array of globs in the original gulp.src then most of my partial files are missed. See my 'gulp broken' task:

➜  gulp without
[16:04:23] Using gulpfile ~/what/ui/gulpfile.js
[16:04:23] Starting 'without'...
[16:04:23] gulp-debug: ~/what/ui/public/assets/images/bg.png
[16:04:23] gulp-debug: ~/what/ui/public/partials/connect-local.html
[16:04:23] gulp-debug: ~/what/ui/public/assets/images/logo-sm.png
[16:04:23] gulp-debug: ~/what/ui/public/partials/landing.html
[16:04:23] gulp-debug: ~/what/ui/public/assets/images/logo.png
[16:04:23] gulp-debug: ~/what/ui/public/partials/login.html
[16:04:23] gulp-debug: ~/what/ui/public/partials/profile.html
[16:04:23] gulp-debug: ~/what/ui/public/index.html
[16:04:23] gulp-debug: ~/what/ui/public/partials/signup.html
[16:04:23] gulp-debug: 9 items
[16:04:23] Finished 'without' after 174 ms
➜  gulp without2
[16:04:28] Using gulpfile ~/what/ui/gulpfile.js
[16:04:28] Starting 'without2'...
[16:04:29] gulp-debug: ~/what/ui/public/index.html
[16:04:29] gulp-debug: ~/what/ui/public/partials/connect-local.html
[16:04:29] gulp-debug: ~/what/ui/public/partials/landing.html
[16:04:29] gulp-debug: ~/what/ui/public/partials/login.html
[16:04:29] gulp-debug: ~/what/ui/public/partials/profile.html
[16:04:29] gulp-debug: ~/what/ui/public/partials/signup.html
[16:04:29] gulp-debug: 6 items
[16:04:29] Finished 'without2' after 166 ms
➜  gulp works
[16:04:34] Using gulpfile ~/what/ui/gulpfile.js
[16:04:34] Starting 'clean'...
[16:04:34] Finished 'clean' after 15 ms
[16:04:34] Starting 'works'...
[16:04:34] gulp-debug: ~/what/ui/assets/javascript/templates.js
[16:04:35] Finished 'works' after 327 ms
[16:04:35] gulp-debug: ~/what/ui/public/partials/connect-local.html
[16:04:35] gulp-debug: ~/what/ui/public/partials/landing.html
[16:04:35] gulp-debug: ~/what/ui/public/partials/login.html
[16:04:35] gulp-debug: ~/what/ui/public/partials/profile.html
[16:04:35] gulp-debug: ~/what/ui/public/partials/signup.html
[16:04:35] gulp-debug: 6 items
➜  gulp broken
[16:04:38] Using gulpfile ~/what/ui/gulpfile.js
[16:04:38] Starting 'clean'...
[16:04:38] Finished 'clean' after 15 ms
[16:04:38] Starting 'broken'...
[16:04:39] gulp-debug: ~/what/ui/assets/javascript/templates.js
[16:04:39] Finished 'broken' after 326 ms
[16:04:39] gulp-debug: ~/what/ui/public/partials/profile.html
[16:04:39] gulp-debug: ~/what/ui/public/partials/signup.html
[16:04:39] gulp-debug: 3 items

The two file that get picked up are consistently the same. But if I rename the files then they will change. No idea what could be causing this.

Note: In my original code I had a function to test whether the src file was index.html before running usemin on it. Adding this back in does nothing however