child theme inop after theme update

today I ran the update for Catch Box...and my child theme edits aren't working any more. Any thoughts on this? I have a content-page.php file, a footer.php file, a functions.php file (with no edits in it) and a style.css page. Those are my over-rides...my nav bar and front page CSS seems to have stopped working. What changed in the update to affect these things? Anyone know before I spend a bunch of time trying to debug the code? Darn...the whole purpose of a child theme is so that this doesn't (isn't supposed to) happen! Arrggghh!!!!