Custom font set in a storyboard won't display on device

I created a label in LaunchScreen.storyboard and used a custom font. It looks all right in xcode but when I run the program on my device or simulators it won't display the custom font. I've already added the font file to the project and the font name to the "Fonts provided by application" array in info.plist. The font file is also added to "Copy Bundle Resources". I've tried all the solutions provided in some other similar questions but none of them worked so I'm not asking a repeated question.