BUG: letter "H" often missing from highlighted/excerpted passages

I guess this is a bug report.
This morning I was reading a document and highlighting some passages. This afternoon I happened to open up the outline view and saw that the letter H was often absent from words, especially when the passage began with words like “the” (appear as “te” in the corresponding outline highlight), “this” (appears as “tis”), and “thus” (appears as “tus”). If I turn the document into a studyset the excerpts appear the same. Clearly if I export these highlights they would need to be edited before I could repackage them for use in other ways

Within these same passages, the letter H appeared normally in other instances of the same words (the, this) and other words.

Try using the Preview app to copy a word exhibiting this issue into a text editor. This will tell you if it is a document issue (likely) or a MarginNote issue.

No problem with the text when I copy it out of the PDF in Preview, which seems to suggest a MarginNote issue.