gallerix-frame img tag not showing on access by /node/<id> directly (e.g: custom view link)

For some reason, the tag would not get rendered for the frame picture when accessing a gallerix node directly using an url like www.mysite.punk/node/id, but works fine when picture ID is passed as a GET parameter (e.g: block links). I couldn't find the explaination to this by now, but deactivating the get_size parameter on the call to the theme('image',..) function for the frame picture did fix it for me.
I did check the file actually existed, and so on, but did not check the code carefully by now. Also, all javascript seems to be working properly, since even with no frame-picture tag the grid scrolled allright (although no picture showed up)