Replacing bfa_excerpt() with the_content() in postformat.php causes mismatch

I've looked over "full posts on the front page" a number of times and come to the conclusion that replacing bfa_excerpt( 55, ' ...' ) with the_content() in postformat.php should give the result that widdy previously desired and I now desire.

I have done so, and indeed, my front page shows full content instead of just excerpts... except that instead of:

Title 8
Content 8

Title 7
Content 7

Title 6
Content 6

etc., I have:

Title 8
Content 7

Title 6
Content 5

Title 4
Content 3

I have been hitting my head against this puzzle for a while now.

Is there anyone who could teach me... how to solve problems? Or how to fish? My Wordpress and PHP knowledge are pretty minimal. Thanks in advance.