3d model with mechanim animation inside the UI breaks on Android

Unity Engine
1

Hi,

I have a 3d model of an arrow.
I have a UI canvas with panels, one of the panels contains this 3d model.
I am using a different camera for the UI, and in the canvas I chose “Screen space - camera”.

the 3d model has a simple animation that just changes its Rotation.z value.

everything is working fine as it should inside Unity.

but when I build and run it on my Android phone, the arrows disappear as soon as they start to rotate…
when I disable the animation in Unity and build and run it again, I can see the arrows and they do not disappear.

everything is working as it should besides that.

anyone had that problem or knows the solution???

thanks a lot!!
Lior

2

UPDATE -
when I change the arrow’s shader (Standard Shader rendering mode) to fade it works on the android…
I don’t understand it though