As you can see in the recording, in the new page builder there is some content, when switching to the legacy editor, the content is different, the text before the link is duplicated as bold. If i remove the bold text (in legacy), the whole text before the link becomes the link, changing the link adds back the bold etc etc.
I tried creating a new slice completely, adding everything manually, and the issues stated appearing when i added all the text as italic (legacy).
This was eventually solved by re-doing it manually in the page builder instead.
So no support needed, but wanted to bring attention to this bug