Upload failed: sb_dll/storybook_ui_dll.js

Hi,

As the title suggests, I'm having difficulty publishing storybook components to DSM. Preview works correctly, as does vanilla Storybook.

Here is an example of the story:

import { storiesOf } from '@storybook/html'

storiesOf('Button', module)
  .add('Button', () => `
<div class="container">
  <button class='btn btn-primary'>Text</button>
</div>
`, {
    'in-dsm': {
      id: '<id>',
      containerClass: 'container',
      docFilePath: './components/dsm/button.docs.json'
    }
  })

Here are the last few lines from the build log, it always fails on the sb dlls:

info => Output directory: /home/project/.dsm/storybook
DSM => ✔ Upload complete: favicon.ico
DSM => ✔ Upload complete: iframe.html
DSM => ✔ Upload complete: index.html
DSM => ✔ Upload complete: main.1f6247c62b60e7e78401.bundle.js
DSM => ✔ Upload complete: main.b59128e94d19f9590346.bundle.js
DSM => ✔ Upload complete: runtime~main.1f6247c62b60e7e78401.bundle.js
DSM => ✔ Upload complete: runtime~main.286b69a873d49f2f199c.bundle.js
DSM => ✖ Upload failed: sb_dll/storybook_ui_dll.js 
DSM => ✖ Error: socket hang up
at connResetException (internal/errors.js:609:14)
at TLSSocket.socketOnEnd (_http_client.js:453:23)
at TLSSocket.emit (events.js:327:22)
at endReadableNT (_stream_readable.js:1221:12)
at processTicksAndRejections (internal/process/task_queues.js:84:21) 

I'm on Node v12.18.1, Storybook HTML v5.3.19, DSM Storybook v0.0.129.

Thanks