I'm seeing something odd with the inline MathJax rendering on the MathJax basic tutorial.
There are 15 items in a numbered list in the tutorial. For items 1 to 5 (and also the first part of item 6) the inline mode MathJax rendering does not work. I tried Safari, Firefox and Chrome on macOS Mojave.
From somewhere in item 6 downward, the inline mode MathJax rendering works fine. Display mode rendering works fine throughout the tutorial.
See this screenshots with visual hints for clarification:
Can someone confirm this or is it just me? Does someone have a clue what's going on?