So, basically, whatever you place into a scroll box, if you rotate it, a part(or half?) will appear where its supposed to be hidden. I think it may even appear like that in the editor of the Widget bp as well!
After doing some digging I found that this is a known issue (UE-4659) and that it has been submitted to the developers for further consideration. I have provided a link to the original issue. Please feel free to follow the thread in the link for future updates. Thank you for your time and information.