Images diplayed twice in FAQ block

Hello,

I discovered the problem that images are displayed twice in the FAQ block.
This happens in Microsoft Edge and Safari.
On Google Chrome it functions correctly.

If you go to my page in one of these browsers and open the FAQ topic “zelf ontwerpen” you will see that all three images are shown, twice.

If you go to the permalink of this FAQ, the images are shown correctly. So this only happens in certain browsers and only in the FAQ block.

I set this up with a “media & text” block.

Any ideas how to fix this?

Thanks!

The page I need help with: [log in to see the link]