Thank you for your post.
I am able to replicate the issue with FileMaker Pro 14.0.5 under Mac OS X 10.11.4 and Windows 7. I have forwarded your posting, screen shot and my findings to Development and Testing for review. When I receive any feedback, I will let you know.
Our Development and Testing departments are already aware of this issue with vertical text. Your post has been linked to the original report.