This warning is persistent and og: image remains blank
Warnings That Should Be Fixed
Parser Mismatched Metadata
The parser’s result for this metadata did not match the input metadata. Likely, this was caused by the data being ordered in an unexpected way, multiple values being given for a property only expecting a single value, or property values for a given property being mismatched
Every other parameter is okay apart from;
og:image
og:image alt
I have already added the images in SEO tool and still not showing