I noticed that couple of days ago, the Insert link functionality is broken. Then I started to notice that there are other broken functionality as well:
Links
Quotes
Code
Basically all previous shortcuts are gone.
Besides that, if you select a text and add a link on that text, the text will be removed. If you press ctrl+k to insert a link, the browser (chrome, at least) will focus address bar, so you will need to move the mouse, click on the URL field, then add the url.