The issue is related to how the image src is being set on your website. Looking at the post at Welcome to IPFS Weekly 133: April Meetup, Scaling Ethereum, Protocol Labs Resnet Lab, and More | IPFS Blog & News, the image in the post has its src set to
../assets/img/2021-04-14-cardheader-scaling-ethereum-1459531d.1459531d.png
That causes Discourse to set the src to
https://blog.ipfs.io../assets/img/2021-04-14-cardheader-scaling-ethereum-1459531d.1459531d.png
This results in a broken image. Editing the src my browser’s console to https://blog.ipfs.io/../assets/img/2021-04-14-cardheader-scaling-ethereum-1459531d.1459531d.png fixes the issue.
I’m not sure how Discourse should be handling this. I’ll have a closer look at the code that’s used to absolutize the src URL on Discourse and see if there’s anything that can be done.