I would suggest that, as well as " in the names mentioned by Robin Castlin (which you could also avoid as " ), this is your og:url contains unshielded ampersands.
Does it work if you replace & with & in this field og:url ?
So you replaced
<meta property="og:title" content="123-ABC Butterfly Fun Carpet 3'10" x 5'5" Rectangle" /> <meta property="og:url" content="http://localhost:2609/Pages/ProductSummary.aspx? OrganizationProductID= ... &StoreID= ..." />
to
<meta property="og:title" content="123-ABC Butterfly Fun Carpet 3'10" x 5'5" Rectangle" /> <meta property="og:url" content="http://localhost:2609/Pages/ProductSummary.aspx? OrganizationProductID= ... &StoreID= ..." />
to ensure that all metadata contains valid HTML.
Owen blacker
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