Album Artwork Resolution Since Update

I use a unitiserve as a storage device and ripper for my Linn DS devises, however since updating the software on my unitiserve the artwork shown on my Kinsky app is appalling. I also have a Nas back up devise and the artwork maintains perfect resolution so i know its down to the uniti, I have checked my settings and I can`t see any options to change the resolution on the desktop client. Does anyone else have the same issues? 

Ding