When you select one word and add styling to it (or other modification, a link for example) and then select next word after it and apply some styling to it, the space between the two will be removed. Its only view bug - after publishing text is formatted correctly with space between the words.

Steps to reprodce
1. Create new blog post.
2. In body type: "Lorem ipsum dolor sit amet, consectetur adipiscing elit."
3. Select "ipsum" and apply Bold to it.
4. Select "dolor" and apply Italic to it.

This issue occurs only in Chrome Browser.