Image is not showing up for tab bar item

Go to Assets folder. Select your tab image. On the right side under Attributes you will find "Render As". Select "Original Image".

When you click on a tab bar icon in one of your view controllers, on the right hand side is where you set the image. What's misleading is that there are two places to set the image in the right sidebar. Under Tab Bar Item > System Item (custom) below that selecting the custom image. Then right below that whole first set there is Bar Item > Image. Mine wouldn't show up until I set the Bar Item > Image as well.