If you are seeing something like the image above, you most likely copied text from an email, website, or possibly a Word/Publisher document. What is happening here is the Greenhouse is attempting to copy the formatting from the previous source, but it is not able to do this.
To avoid this issue moving forward, you will want to manually type the text into the text box (easiest solution) or you will need to remove the formatting before pasting in the Text Editor by following the instructions below.
If you're using a Mac, copy the text as normal. Then, paste the text into a Text Section within Greenhouse by holding down COMMAND+SHIFT+OPTION and hitting V.
If you're using a PC, copy the text as normal. Then, paste the text into a Text Section within the Greenhouse by holding down CTRL+SHIFT and hit V.