Login to your DAZ account page (My Account), click on Itemized Order History, and reset your V4 items, then you can download them again (they will be V4.2 now). That should do it. 

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)