I recently deployed an app and it tests fine on my iPad and android device along with other devices my friends have. Below is an image that I found on facebook from a unknown users device.
There seems to be a transparency issue with the glasses and table mat. Do you know why this is happening on this users phone? Is there a way to fix this issue?
| Attachment | Size |
|---|---|
 fp2.jpg | 194.21 KB |
It's possible that the user's device doesn't support the Unity shader used for those materials. My advice is to check on Unity answers, or their forum for some recommendations on transparent shaders that are portable across mobile contexts, though typically Unity's Mobile shader category is reliable.
But without some information on the device itself, it's difficult to isolate the cause, because it could be specific to that device, or that model.
Had you modified the ImageTarget prefab instance, or overlaid anything on the ImageTarget in your scene? Because the target instance in the Editor shouldn't be rendered at runtime, it's disabled.