Signup Terms of Service Plugin: Formatted Text issues

Text formatting applied via the WYSIWYG editor will not take hold. The resulting copy reads like one ominous mass of text which is not at all user-friendly. I have searched the threads and have found some outdated solutions which appear to no longer apply as the source code contained within signup-tos.php has obviously changed. Any help or insight would be greatly appreciated. BTW, I can only assume that this is, indeed, an issue stemming from some sort of script conflict as I have a number of other plug-ins installed.

Thank you in advance for your time and attention into this matter.

BTW: WP ver = 4.2.2
Signup TOS plugin ver = 1.3.5