Syntax Error on front end

Using latest WordPress 6.2.2, I installed the WP Mermaid plugin, then went to a post, added the WP Mermaid block at the end of the post, added to the editable part the following simple mermaid syntax:

graph TD
A-->B;
A-->C;
B-->D;
C-->D;

It rendered in the Editor fine.

I saved the post by clicking on update and then clicked on “View Post”. The result was a typical Mermaid “Syntax error in graphmermaid version 9.4.3” with the Bomb icon. Following error in the browser console:

Firefox:

Uncaught ReferenceError: jQuery is not defined
https://wp-62-blank-theme-design-style-guide.local/hello-world/:281

Edge, Chrome:

jQuery is not defined
at (index):265:402

When I edited the page, instead of the Mermaid rendering, the Mermaid syntax had been reduced to a single line. I clicked on the block, and the mermaid syntax returned to its edited format, but with a blank line inserted on the initial line. I erased that line, and the Mermaid diagram rendered; but viewing produced the same results, as did saving the post and re-editing.

Thanks for updating this plugin!