Markdown that contains LaTeX with >=2 occurrences of multiple subscripts cannot be displayed.

Markdown content that contains LaTeX equations, which is shown correctly in MathJax's jsbin playground or in other LaTeX editors, cannot be displayed, as shown in the following figure.

$$
H \Psi_{nlm} = E \Psi
$$

$$
H \Psi_{nlm} = E_{nlm} \Psi
$$

The boilerplate HTML file with the content above :

<!DOCTYPE html>
<html>
  <head>
    <title>Title</title>
    <meta charset="utf-8">
    <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
    <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>    
    <style>
      @import url(https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz);
      @import url(https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic);
      @import url(https://fonts.googleapis.com/css?family=Ubuntu+Mono:400,700,400italic);

      body { font-family: 'Droid Serif'; }
      h1, h2, h3 {
        font-family: 'Yanone Kaffeesatz';
        font-weight: normal;
      }
      .remark-code, .remark-inline-code { font-family: 'Ubuntu Mono'; }
    </style>
  </head>
  <body>
    <textarea id="source">

class: center, middle

# Title

---

# Agenda

1. Introduction
2. Deep-dive
3. ...

$$
H \Psi_{nlm} = E \Psi
$$

$$
H \Psi_{nlm} = E_{nlm} \Psi
$$

---

# Introduction

    </textarea>
    <script src="https://remarkjs.com/downloads/remark-latest.min.js">
    </script>
    <script>
      var slideshow = remark.create();
    </script>
  </body>
</html>

gnab / remark

Markdown that contains LaTeX with >=2 occurrences of multiple subscripts cannot be displayed. #661