Some sprites aren't visible on mobile

Hi everybody. On mobile some of the sprites in my paper2d game aren’t loading. It’s just the enemy blueprint I uses multiple times. The enemy is still there, but you can’t see it. Any idea what’s causing this? I checked the visibility and it’s enabled.

Changed the sprite/flipbook, and it’s still not working. I think it’s may be something in my blueprint for this particular enemy.

Update: Just a little more info to help diagnose the issue:

I ran my game on not just the Note 5, but a iPhone 4s, 5, and 6 Plus. Same issue occurs in each instance (the enemy Flipbook/Sprite is not visible).

Please someone, let me know what more info you need to help diagnose and resolve this issue. I can provide screenshots to whatever you may want to see.

I’m getting the following error from the phone: 03-31 10:24:08.650 22155-22405/com.YourCompany.PlatformingKit2 E/libEGL: called unimplemented OpenGL ES API

How do I resolve this OpenGL ES issue?