Hi,
I have been having a similar but different issue. We had many errors but installed Rich Snippets for Products which fixed the errors but also left the errors behind. Makes no sense I know, please see here:
https://search.google.com/structured-data/testing-tool#url=https%3A%2F%2Ffiddlestix.net.au%2Fall-team-merchandise%2F2976-afl-magnetic-mini-footy-ladder-official-11cm-x-27cm-licensed.html
Does anyone know how I can get rid of the errors and leave just the last snippet?
Thanks in advance