iOS PNG issues in UI and Particles

Hi,

I’m fairly new to UE4, but I’ve worked with similar engines in the past.

I am working on a project for my company that includes a few particle effects and a fullscreen UI widget. The UI widget has transparency so the effects can show through. On Mac and PC, the entire project renders perfectly. On iOS, specifically a new iPad Pro, the fullscreen UI widget background becomes this tiled white image with very small poorly rendered text. I assume it’s some type of error message, but it’s not legible. Any ideas what this could be?

Also, my particle effects with transparency work fine on Mac and PC, but on the iPad Pro, they become large squares but still render their lighting.

Is there a maximum image size for iOS that I am missing? My fullscreen widget background is 2732 x 2048 and my particles are large 8 x 12 images. Even in Mobile Preview, these both render correctly. It’s only when I package and deploy to iPad that I see issues. I have scanned through the error logs and not seen any errors.

Thanks!