[Ruskie_it]

Not sure if I should post here, because I think this is more a thing of the EBOOK, not the editor, however:

I have one book (epub) for which the Search function does not seem to work.
That is, if I try to search for, say, a word, I get "no matches found", even when I have that word right in front of me on the page!
And yes, I am sure I have placed the cursor BEFORE that word with search direction running "down".

I think it's something related to the book however because search works with other ebooks. Additionally, I have tried in Sigil as well, with the same result: no matches found for any word, while it works with others.

So I was wondering: what could cause this problem in an ebook?

Thanks