Attach (recommended) or Link to PDF file here: [ICEE-B.2017.8192026.pdf](https://github.com/mozilla/pdf.js/files/6651211/ICEE-B.2017.8192026.pdf)

Configuration:
- Web browser and its version:  Firefox 89.0 (64-bit)
- Operating system and its version: Windows 10 Pro Version 21H1
- PDF.js version: I don't know, sorry
- Is a browser extension: No

Steps to reproduce the problem:
1. Open PDF
2. Figure 1 in page 2 is missing

What is the expected behavior? (add screenshot)
This is how it looks in Edge
![image](https://user-images.githubusercontent.com/40286841/121958287-839b0b80-cd31-11eb-8400-7d9c088d83fa.png)

What went wrong? (add screenshot)
This is how it looks in firefox
![image](https://user-images.githubusercontent.com/40286841/121958359-99a8cc00-cd31-11eb-9d15-b94d5884e03d.png)


Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

context,
            ps[q + verticesPerRow + 1],
            ps[q + 1],
            ps[q + verticesPerRow],
            cs[q + verticesPerRow + 1],
            cs[q + 1],
            cs[q + verticesPerRow]
          );
        }
      }
      break;
    case "triangles":
      for (i = 0, ii = ps.length; i < ii; i += 3) {
        drawTriangle(
          data,
          context,
          ps[i],
          ps[i + 1],
          ps[i + 2],
          cs[i],
          cs[i + 1],
          cs[i + 2]
        );
      }
      break;
    default:
      throw new Error("illegal figure");
  }
}
class MeshShadingPattern extends BaseShadingPattern {