Twitter Large Summary Card not updating

Hello,

I am using RankMath for SEO and have a problem with showing the large summary card for Twitter correctly for the following page: https://pandem-ic.com/booster-coverage-of-population-by-country-map-1/

I am not sure why this is not working. I specified in Rank Math the following image for the Twitter card: http://pandem-ic.com/wp-content/uploads/vax_coverage_boosters_population_map_seo_tw.png

It also shows correctly when I inspect the page source: <meta name=”twitter:image” content=”https://pandem-ic.com/wp-content/uploads/vax_coverage_boosters_population_map_seo_tw.png”/&gt;

The image has dimensions: 1200 by 630 pixels, but I have also tried 1260 by 630 so the aspect ratio is 2:1 but that doesn’t make a difference.

I have tried to trigger Twitter into updating the image by adding information to the link (such as “?id=1234”. I have also tried different bit.ly links. But none of this makes a difference either.

Would you have any suggestion what’s wrong and how to fix it?

Thanks