Google docs is a word processor program, so occasionally you will have to do post editing for formatting and paragraph breaks due to how guild is a lot more simpler in its text formatting. Good example can be when you bold, italics, or colour text to the Guild from Docs, or vice versa when using lists.

Sadly there's not much you can do and even if/when there is a formatting upgrade it is gonna be a different base program so the problem may stick around or even change entirely.