Storybook not hot-reloading custom add-on

[WillsB3]

Summary

I have a repository where I have the roughly the following structure:

.
├── project/
│   ├── .storybook/
│   │   └── main.ts
│   ├── components/
│   │   └── MyComponent/
│   │       ├── MyComponent.tsx
│   │       └── MyComponent.stories.tsx
│   └── package.json
└── storybook-addon-myaddon/
    ├── dist/
    │   └── manager.js
    ├── src/
    │   └── manager.ts
    └── package.json

My project/.storybook/main.ts looks like this:

import type { StorybookConfig } from '@storybook/react-vite'

import { resolve } from 'path'
import { mergeConfig } from 'vite'

/** @type { import('@storybook/react-vite').StorybookConfig } */
const config: StorybookConfig = {
  async viteFinal(config, { configType }) {
    return mergeConfig(config, {
      resolve: {
        alias: {
          '@/components': resolve(__dirname, '../components'),
          '@/emails': resolve(__dirname, '../emails'),
          '@/lib': resolve(__dirname, '../lib'),
        },
      },
    })
  },
  staticDirs: [{ from: '../emails/static', to: '/static' }],
  stories: ['../**/*.mdx', '../**/*.stories.@(js|jsx|mjs|ts|tsx)'],
  addons: [
    '@storybook/addon-onboarding',
    '@storybook/addon-links',
    '@storybook/addon-essentials',
    '@chromatic-com/storybook',
    '@storybook/addon-interactions',
    '../../storybook-addon-myaddon/dist/manager.js',
  ],
  framework: {
    name: '@storybook/react-vite',
    options: {},
  },
  docs: {},
}
export default config

When i run storybook dev -p 6006 from the project directory my Storybook starts and I can see my add-on panel as expected.

However, when I make changes to my add on panel and save them they do not appear in my project Storybook until I completely close the Storybook server and re-run it.

I can see my add-on files are being rebuilt correctly to the storybook-addon-myaddon/dist directory.

Do I need to do something special to make live-reloading of a local Storybook extension work?

Many thanks

Additional information

Relevant Storybook dependencies in project/package.json

"@chromatic-com/storybook": "^1.4.0",
"@storybook/addon-essentials": "^8.1.1",
"@storybook/addon-interactions": "^8.1.1",
"@storybook/addon-links": "^8.1.1",
"@storybook/addon-onboarding": "^8.1.1",
"@storybook/blocks": "^8.1.1",
"@storybook/react": "^8.1.1",
"@storybook/react-vite": "^8.1.1",
"@storybook/test": "^8.1.1",

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