There seems to be a problem with spacing after emojis in blogs and blog descriptions.

It seems to be a known Chrome bug that only affects Macs without retina screens

https://bugs.chromium.org/p/chromium/issues/detail?id=596223

The odd thing is: this didn't affect the previous version as badly for some reason.

Won't fix (can't fix?) - even if we had a technical solution for this it's probably not worth it for many reasons.