use embed API JS in Vue 3 - reload or 2nd time loading not working

Hi team,

First, want to thanks @Raymond Camden  for his awesome blog - Using the Adobe PDF Embed API with Vue 3 (raymondcamden.com) , guide me successfully integrate embed API within vue 3 at 1st step.

while, after I'm struggling into step 2 ~ I noticed if use same viewer to load pdf again will throw an error

refer to my screenshot

Uncaught Error: Cannot read properties of undefined (reading 'readFile')

TypeError: Cannot read properties of undefined (reading 'readFile')
    at t.syncFile (tsWorker.js:7:2975102)
    at tsWorker.js:7:2973824
    at workerMain.js:147:690
    at Array.forEach (<anonymous>)
    at t.acceptRemovedModel (workerMain.js:147:663)
    at e._handleMessage (workerMain.js:106:579)
    at Object.handleMessage (workerMain.js:106:196)
    at e._handleMessage (workerMain.js:104:402)
    at e.handleMessage (workerMain.js:103:975)
    at e.onmessage (workerMain.js:106:275)
    at editor.main.js:146:526

code pen - https://codesandbox.io/embed/adobe-vue-embed-api-forked-jlbymz?fontsize=14&hidenavigation=1&theme=dark