Navigation broken after adding showRoots option

Describe the bug First time loading the site doesn’t show showRoots group titles. Refreshing the page after first load shows the group titles but now navigation doesn’t work.

This is only a problem here storybook.canopytax.com. Running this locally works.

To Reproduce Steps to reproduce the behavior:

1. Go to storybook.canopytax.com
2. Notice showRoots groups are not there, but navigation works
3. Refresh page
4. showRoots group titles are now there
5. try clicking on other stories - navigation doesn’t work - requires a page refresh to load correct page

Expected behavior

• I expect the showRoots group titles to show on first load
• I expect navigation to work

Code snippets

addParameters({
  options: {
    showRoots: true,
  },
});

System:

System:
    OS: macOS 10.15.5
    CPU: (8) x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
  Binaries:
    Node: 12.16.0 - ~/.nvm/versions/node/v12.16.0/bin/node
    Yarn: 1.22.0 - ~/.nvm/versions/node/v12.16.0/bin/yarn
    npm: 6.13.7 - ~/.nvm/versions/node/v12.16.0/bin/npm
  Browsers:
    Chrome: 83.0.4103.116
    Firefox: 74.0
    Safari: 13.1.1
  npmPackages:
    @storybook/addon-actions: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/addon-docs: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/addon-knobs: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/addon-links: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/addon-notes: ^5.3.19 => 5.3.19 
    @storybook/addon-storysource: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/addons: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/cli: ^6.0.0-beta.38 => 6.0.0-beta.38 
    @storybook/preset-scss: ^1.0.2 => 1.0.2 
    @storybook/react: ^6.0.0-beta.38 => 6.0.0-beta.38 

Additional context

• Running it locally works
• sometimes stories don’t render
• sometimes the docs tab doesn’t render

[alexchantastic]

I ran into a similar issue today on 6.2.8. My initial setup had showRoots: false which worked fine. Later on, I decided that I actually wanted to show top level headings. I removed the line and restarted Storybook, but the root headings still didn’t show up. I re-added the line but set it to true instead and restarted Storybook – still no headings.

I dug around and discovered the --no-manager-cache flag. I restarted Storybook with this flag and they finally showed up 🎉 ! Removing the showRoots line also worked and I was able to launch Storybook without the flag later on.

[geoctrl]

reverting back to 5.3.19 fixed the issue (version disparity somewhere?)

then we followed the migration instructions to update to v6 and there’s still no issue 🤷‍♀️