After Newsmag-Update the post images will not be displayed after linking

Wordpress 5.5.1
Newsmag 4.9.5
Website: android-user.de

After updating to the newest Newsmag version, the pictures (post images) of the articles will not be shown by linking on facebook, twitter, telegram and MeWe.

For example this link: https://www.android-user.de/pixel-4a-googles-smarterphone-ab-sofort-vorbestellbar/

On facebook it looks like this: https://drive.google.com/file/d/1Egp2LssguSoCFct-LpbV_Un25LXmWsLf/view?usp=sharing

Facebooks Sharing Debugger (https://developers.facebook.com/tools/debug/) says, that the “The “og: image” property should be specified explicitly, even if a value can be derived from other tags.”

Another link: https://www.android-user.de/tipp-google-one-speichermanager-speicherplatz-freigeben/
The Sharing Debugger says: The specified above: image URL (https://www.android-user.de/tipp-google-one-speichermanager-speicherplatz-freigeben/) was not valid because it did not correspond to the minimum size of 200 x 200 pixels.

At the old newsmag version it had works fine.

Do you have an idea whats wrong?

Thank you and best regards
Andre

I have changed the standard thumbnail size in wordpress settings to 200×200 and regenerate the thumbnails for this article. But it have no effect.

I made a video that will show you the problem: https://youtu.be/AGT9o2AZxHE

Hi Calin,

yesterday I’ve tested some things. But (I think) the solution was, that we had enabled the brotli compression on our cloudflare-cdn. But facebook cannot interpret that! Now we are using only gzip.

But, its curious: Why did it ever work before (with brotli)?

Best regards
Andre