I've been copying text from a MS PowerPoint into Confluence pages, which are having paragraphing issues. When the page is in Edit mode, the text appears as it should:

However, when I Publish the page the text starts to drop onto new lines after random words (below) - this happens throughout the page.

I've copy + pasted from the same PPT into other Confluence pages previously and had no issues, so I'm unsure why it keeps happening on this particular page.
Any advice appreciated!