When you paste text into the editor from another source (eg. Microsoft Word), it can carry over the formatting from its original location. This can override the default styling and cause formatting issues. You can tell if there are any overrides if the bottom-right corner of the editor is showing one or more span tags. This can also be caused by applying formatting in the editor, such as attempting to change the Font Size.
In order to clear this, select the entire text and then click the Remove Format 
icon in the Toolbar.
This will clear all existing formatting and reset it to the default styling set by the Marketing team.
Ensure that there are no remaining span tags and then submit your profile it for approval, it should now show properly on the website.
Note: You may have to check that your team members do not also have font overrides to ensure consistency across all profiles.