First of all, thanks so much for this awesome tool!
I've been having an issue when using code blocks inside speaker notes when using an external markdown file. I've posted a question on StackOverflow but I'm starting to think maybe this is a bug. It looks like code blocks in speaker notes, when coming from an external markdown file, get rendered with <p> tags instead of with <pre> tags. They render properly when using inline markdown.
this could be the same but like here: #797