My meta tags seem to be fine and the post inspector shows the image perfectly but when I try to share the post on linked, the image is always missing.
Here's how my html looks:
<head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# article: http://ogp.me/ns/article#"><style id="stndz-style"></style>
<title>Varje artikel bör för sökmotoroptimeringens skull innehålla minst 1 av - Utbildning - GoalEnvision.com</title>
<meta name="keywords" content="Vision, Mission, Affärsidé och Smarta Mål i Ledningsgruppen">
<meta name="description" content="VD och Ledningsgrupp. Formulera, kommunicera och genomför er strategi. Genom smarta mål arbetar ni med er affärsidé för att nå er vision.">
<link rel="icon" href="/favicon.ico" type="image/x-icon">
<meta property="og:title" content="Varje artikel bör för sökmotoroptimeringens skull innehålla minst 1 av ">
<meta property="og:image" name="image" content="https://goalenvisiontest.blob.core.windows.net/images/7_large_image.jpg">
<meta property="og:image:height" content="627">
<meta property="og:image:width" content="1200">
<meta property="og:description" content="sdkfjns lkjfnd slkjfnsl dkfjnsdlfkds">
<meta property="og:type" content="article">
<meta prefix="og:url" content="https://goalenvisionpublic-test.azurewebsites.net/sv/event/7-varje-artikel-bor-for-sokmotoroptimeringens/?ppl=sade">
Not really an answer but LinkedIn have confirmed the bug in their crawler. Here's what I heard from them:
Thanks for reporting your issue. We've confirmed the problem you reported. After careful assessment, we've decided that we won't be moving forward with a fix at this time. LinkedIn continuously evaluates how features and products are used and we make adjustments accordingly to focus our resources on providing the most value to our members.
We greatly appreciate your feedback and have documented the issue to track additional reports of the problem and for consideration to be addressed in a future release. If there's anything else I can help you with, please don't hesitate to let me know.
so when helping someone else i discoverd this, hopefully this/was the case with you.
The first time that LinkedIn's crawlers visit a webpage when asked to share content via a URL, the data it finds (Open Graph values or our own analysis) will be cached for a period of approximately 7 days.
This means that if you subsequently change the article's description, upload a new image, fix a typo in the title, etc., you will not see the change represented during any subsequent attempts to share the page until the cache has expired and the crawler is forced to revisit the page to retrieve fresh content.
If you make API calls that directly provide the content to be shared rather than by a URL that requires analysis, LinkedIn will always use the values you provide.
source: https://developer.linkedin.com/docs/share-on-linkedin
来源：https://stackoverflow.com/questions/52638529/linkedin-image-thumbnail-missing-from-shared-post-shows-in-post-inspector