I have finally found time to start developing filemaker go solutions, but have run into a couple of problems. First when I set up a navigation bar in the layout it shows up as a red x on my iPhone. Im using a iPhone 6plus and used custom width and height that I found on Using Screen Stencils to design iOS friendly layouts using FileMaker Pro 14 | FileMaker. If I switch the part definition to a header it displays fine. Also button bars will not show up in either a header or navigation bar on the iPhone. I've attached a picture.
Note: I'm developing this with Filemaker Pro Advanced 14 with files hosted on Filemaker Sever 14.