APA 6th references showing up incorrectly

Hi there, 

I wonder if anybody might be able to help me. I am using APA 6th referencing style for my thesis in Endnote. While half of my references are displayed correctly within the text, the other half are not. If you note in the very last example below, the majority of the reference is displayed correctly 


(D. J. Rickwood, F. P. Deane, & C. J. Wilson, 2007; C. J. Wilson, Bushnell, & Caputi, 2011)  

(Ronald C Kessler, Foster, Saunders, & Stang, 1995).

(Debra Rickwood et al., 2005).

 (Debra Rickwood, Deane, Wilson, & Ciarrochi, 2005)

I have checked and instant formatting is on. I would greatly appreciate any advice. 

Thanks a million