Indesign is not breaking paragraphs to fit margins properly
I usualy use "Keep option" to keep the last two lines of a paragraph together and allow one single line in the begining of the paragraph. Just like this:

But something weird is happening. There are certain paragraphs that Indesign is not breaking to the next page without taking two lines of the previous paragraph, leaving a huge gap in the body of the text. Let me show:


As you can see, although there is planty of space inside the margins, when I ajust the text frame to fit the margins, it breaks the paragraph and take two lines to the next page, leaving a gap in the text body. What am I missing here?
