When importing from a .docx the RichTextBox is adding a blank line for each continuous section break. You can see this in the attached file - in the RichTextBox there is an extra line between sections that does not exist in the source word document.
Hello Matt,
It seems you are hitting a known issue related to the positioning of the section break formatting symbol. We have it logged in our backlog and you can subscribe to track the status of the task and to vote to increase its priority to be fixed using the related public item: RichTextBox: Section break formatting symbol layout is not the same as in MS Word. I am afraid we cannot propose a workaround for this behavior. I updated the status of this Bug Report to Declined because it duplicates the latter.
Regards,
Martin
Progress Telerik