Attach (recommended) or Link to PDF file here:
https://s3.eu-west-1.amazonaws.com/scai-dev.website.com/tmp/8ab8b56a-fa91-11eb-8d74-0242ac110004.pdf

Hi,
Please see an incorrect canvas rendering for the following document - page 9 specifically. It reproduces on https://mozilla.github.io/pdf.js/web/viewer.html (tried with Chrome). Other pages in this document look pretty much the same but the problem is on page 9 only.

Original screenshot:
![image](https://user-images.githubusercontent.com/23075641/129066656-7bb2fb56-2b88-4f40-8e67-b95bdeb9e521.png)


PDF JS:

![image](https://user-images.githubusercontent.com/23075641/129066734-56503a5c-413c-49c1-9e1c-470da3a642ed.png)

constructor(maxSize = 0) {
    this._cache = new Map();
    this._maxSize = maxSize;
  }
  has(key) {
    return this._cache.has(key);
  }
  get(key) {
    if (this._cache.has(key)) {
      
      const value = this._cache.get(key);
      this._cache.delete(key);
      this._cache.set(key, value);
    }
    return this._cache.get(key);
  }
  set(key, value) {
    if (this._maxSize <= 0) {
      return;
    }
    if (this._cache.size + 1 > this._maxSize) {
      
      this._cache.delete(this._cache.keys().next().value);
    }
    this._cache.set(key, value);
  }
  clear() {