Problems with textures in ipad mini 2

Hi!

I am developing an augmented reality app but i am having some problems with my textures, when i test the app in an ipad mini 2, the texture screens "white", but when i zoom in with my ipad to target, the textures looks good,

I did the same in an Iphone 5, ipad 2 and ipad mini 4, and in this devices the app works perfectly, could you help me please ??

[1]: /storage/temp/68318-img-0001.jpg