Hi, Markdown editor developer here. I think this may be due to magic quotes being turned on, on your server, which are a remnant of old PHP. What version of PHP are you using?
Can you tell me EXACTLY what you submitted in the editor box, and what the exact result was? For example:
Also, make sure you are using the latest version of the plugin, here: https://github.com/svivian/q2a-markdown-editor
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.
July 15, 2020: Q2A 1.8.5 released!