Attach (recommended) or Link to PDF file here: [RenderIssue.pdf](https://github.com/mozilla/pdf.js/files/7583657/RenderIssue.pdf)

Configuration:
- Web browser and its version: Chrome Version 96.0.4664.45 (Official Build) (64-bit)
- Operating system and its version: Windows 10 Version 10.0.19042

- PDF.js version: v2.12.201 (If this looks incorrect, please take it from the URL)
- Is a browser extension: No, using https://mozilla.github.io/pdf.js/web/viewer.html

Steps to reproduce the problem:
1. Visit https://mozilla.github.io/pdf.js/web/viewer.html
2. Drop the attached PDF on to the page - [RenderIssue.pdf](https://github.com/mozilla/pdf.js/files/7583657/RenderIssue.pdf)

What is the expected behavior? It should appear as in Adobe Reader - 
![image](https://user-images.githubusercontent.com/94864394/142921185-1ee7034b-1db9-4b6d-ae08-4a9cb4426d70.png)

What went wrong? Some text is blank - 
![image](https://user-images.githubusercontent.com/94864394/142921086-a5ad3ad7-caac-40d8-92d3-684d59aee1f5.png)

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

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 {