Black Textures on Android after switching for iOS target

We have noticed the following thing, if after we have selected iOS as a target, we switch to Android, some of our textures in the Android build appear black. We use Unity's own internal Sprite Packer.

The only fix is to delete the Library folder and re-created everything.

 

Hey I'm having the exact same problem !!

I feel like when Unity switches the platform it doesn't reimport all the sprites and textures. What I do to try to fix is going texture by texture (sprite by sprite) and changing something within it, something that would allow me to click the apply button on the override for android. I believe that this sometimes makes unity reimport the textures or something.

This doesn't work 100% of the time, which is pretty annoying.

I would like to know if more people have this problem and if there is a better way to fix it.