Can't test projects

Hi everyone,

for some reason, on any file I work on, the 'test movie' option doesn't work.

In the browser (Iv'e tried multiple), it shows a '404 file not found' message, even though I always  create a folder in which the files will be (and are).

The projects do show in the browser only after I publish and play them via the created HTML5 shortcut.

Appericiate any help 🙂