coc-prettier: Prettier not being run when saving files

I have coc-prettier installed and have setup coc-nvim as follows:

  "coc.preferences.formatOnSaveFiletypes": [
      "markdown",
      "javascript",
      "javascriptreact",
      "typescript",
      "typescriptreact",
      "json",
      "graphql",
      "elixir",
      "eelixir"
    ]

when I save a js, jsx, ts, or tsx file, coc-prettier does nothing. For many months it was working as expected but suddenly has stopped.

Here is the output of CocInfo:

## versions

vim version: NVIM v0.4.2
node version: v10.15.3
coc.nvim version: 0.0.74-bc017b02e6
term: iTerm.app
platform: darwin

## Messages

## Output channel: watchman

[Info  - 10:48:04 AM] watchman watching project: /Users/thedelchop/Workspace/daydream
[Info  - 10:48:04 AM] subscribing "**/.eslintr{c.js,c.yaml,c.yml,c,c.json}" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:04 AM] subscribing "**/.eslintignore" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:04 AM] subscribing "**/package.json" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:04 AM] subscribing "**/{.prettierrc,.prettierrc.json,.prettierrc.yaml,.prettierrc.yml,.prettierrc.js,package.json,prettier.config.js}" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:05 AM] subscribing "**/[tj]sconfig.json" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:05 AM] subscribing "**/package.json" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:05 AM] subscribing "**/*.{ts,tsx}" in /Users/thedelchop/Workspace/daydream
[Info  - 10:48:05 AM] subscribing "**/*.{js,jsx}" in /Users/thedelchop/Workspace/daydream

## Output channel: prettier


## Output channel: git

Looking for git in: git
> git rev-parse --show-toplevel
resolved root: /Users/thedelchop/Workspace/daydream
resolved root: /Users/thedelchop/Workspace/daydream
> git symbolic-ref --short HEAD
> git diff --name-status
> git diff --staged --name-status
> git ls-files --others --exclude-standard
resolved root: /Users/thedelchop/Workspace/daydream
resolved root: /Users/thedelchop/Workspace/daydream
> git symbolic-ref --short HEAD
> git diff --name-status
> git diff --staged --name-status
> git ls-files --others --exclude-standard
resolved root: /Users/thedelchop/Workspace/daydream
> git ls-files -- assets/js/components/Authentication.tsx
resolved root: /Users/thedelchop/Workspace/daydream
> git symbolic-ref --short HEAD
> git diff --name-status
> git diff --staged --name-status
> git ls-files --others --exclude-standard
> git --no-pager show :assets/js/components/Authentication.tsx
resolved root: /Users/thedelchop/Workspace/daydream
resolved root: /Users/thedelchop/Workspace/daydream
> git symbolic-ref --short HEAD
> git ls-files -- assets/js/components/Authentication.tsx
> git diff --name-status
> git diff --staged --name-status
> git ls-files --others --exclude-standard
> git --no-pager show :assets/js/components/Authentication.tsx

## Output channel: tsserver

[Info  - 10:48:05 AM] Forking TSServer
PATH: /Users/thedelchop/.asdf/installs/nodejs/10.15.3/bin:/Users/thedelchop/.asdf/installs/nodejs/10.15.3/.npm/bin:/Users/thedelchop/.asdf/shims:/Users/thedelchop/.local/share/asdf/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/thedelchop/.asdf/installs/ruby/2.6.3/bin:/Users/thedelchop/.SpaceVim/bin:/Users/thedelchop/.config/oh-my-zsh/plugins/desk:/Users/thedelchop/.config/oh-my-zsh/plugins/diff-so-fancy/bin:/Users/thedelchop/.config/oh-my-zsh/plugins/desk 
[Info  - 10:48:05 AM] Started TSServer
{
  "path": "/Users/thedelchop/Workspace/daydream/node_modules/typescript/lib",
  "_api": {
    "versionString": "3.6.2",
    "version": "3.6.2"
  }
}

## Output channel: eslint

[Info  - 10:48:05 AM] ESLint server running in node v10.15.3
[Info  - 10:48:06 AM] ESLint library loaded from: /Users/thedelchop/Workspace/daydream/node_modules/eslint/lib/api.js

and the output of CocOpenLog:

2019-11-18T10:48:04.153 INFO (pid:74765) [services] - registed service "eslint"
2019-11-18T10:48:04.366 INFO (pid:74765) [plugin] - coc 0.0.74-bc017b02e6 initialized with node: v10.15.3
2019-11-18T10:48:04.411 INFO (pid:74765) [watchman] - watchman watching project: /Users/thedelchop/Workspace/daydream
2019-11-18T10:48:05.461 INFO (pid:74765) [services] - eslint langserver state change: stopped => starting
2019-11-18T10:48:05.495 INFO (pid:74765) [services] - registed service "tsserver"
2019-11-18T10:48:05.522 INFO (pid:74765) [language-client-index] - eslint started with 74949
2019-11-18T10:48:05.606 INFO (pid:74765) [services] - service tsserver started
2019-11-18T10:48:05.637 INFO (pid:74765) [services] - eslint langserver state change: starting => running
2019-11-18T10:48:05.642 INFO (pid:74765) [services] - service eslint started

Can anyone point me in the right direction to figure out why its not working anymore?