I am so confused I could cry!

So, Facebook is showing the wrong og tags for an article that's in K2.
As you can see from the script below, some tags are correct, but the important ones: image, title, description.. are wrong.
I don't know if this problem is with K2, Joomla, Facebook, me or .... who?/what?

Can anyone please offer some insights.

I don't even know what questions to ask to find an answer! I feel like an absolute newbie all over again!

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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta charset="utf-8" />
<base href="workingtheweb.co.uk/wtw-blog/item/120-working-with-roberto-and-bernice-at-j-kutzie-could-end-up-costing-me-a-fortune" /> (THIS IS THE CORRECT URL)
<meta property="og:title" content="Blogging for Business" /> (WRONG TITLE)
<meta property="og:type" content="article" />
<meta property="og:url" content="workingtheweb.co.uk/wtw-blog/item/120-working-with-roberto-and-bernice-at-j-kutzie-could-end-up-costing-me-a-fortune" /> (THIS IS THE CORRECT URL)
<meta name="og:site_name" content="workingtheweb.co.uk" />
<meta property="og:description" content="Blogging on your small business website, offers many advantages to your positioning in search engines, and your businesses profile" /> (THIS IS THE WRONG DESCRIPTION)
<meta name="title" content="Working with Roberto and Bernice at j.kutzie could end up costing me a fortune." /> (CORRECT)
<meta name="author" content="Jo Dehaney" />
<meta property="og:image" content="workingtheweb.co.uk/images/item-images/gabby.jpg" /> (WRONG IMAGE)
<meta name="image" content="workingtheweb.co.uk/media/k2/items/cache/0c758c944f0062609b2677e28107bc5e_M.jpg" />
<meta name="description" content="For a while there, I wanted to don one of his sexy, long linen, jackets, find the hottest pair of boots I could, and paint London red." /> (CORRECT)
<meta name="generator" content="Joomla! - Open Source Content Management" />
<title>Working with Roberto and Bernice at j.kutzie could end up costing me a fortune.</title> (CORRECT)
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So, looking at this after posting above, it seems to be that the meta property elements are wrong, while the meta name elements are correct.

With the exception of meta property="og:url" which is showing the CORRECT url

Can anyone give me any info that might nudge me in the right direction?

Many thanks
Jo

Are you using any SEO/SEF/Social extensions?

No. I have SEF URL's selected in Global Config.
But that's it.
Could that be the problem?

Many thanks

I've just found a sneaky AcyMailing : share on social networks plugin, which I didn't install. Have disabled it but am not seeing a change

Allow some hours since Facebook caches its results.

Okay, this problem has now existed for over a week. I have updated K2 and still the problem persists.

I have tried unpublishing every Item except the one I want to promote on Facebook, and still in shows the OG tags for the wrong article, and now one that isn't even published.

Can anyone think of anywhere I should be looking to try and resolve this problem?

I am getting to the point of thinking I have to rebuild my whole site, and I really don't want to have to do that.

I would really appreciate some help.

Many thanks
Jo

Does your template include any custom SEO functions?
Did you set this image -> workingtheweb.co.uk/images/item-images/gabby.jpg as an og: image elsewhere in your site?

Hi
No I never set any tags. I posted the Item with the Gabby image on Facebook one time, and now it comes up everytime, regardless of which Item I am posting.

It always brings up that image and another Item title and description.

Neither of these are from the article I am posting.

Are you using any caching extensions or a CDN?

Got any solutions? I have the same problem and I can not solve it. Something very difficult to research information and almost nobody has a specific point to be able to analyze the problem. I feel lost.