All texture gone pink and black box

Hello,

I develop a Android application now.
Sometimes, my app launched Android phone, and everytings gone to pink box or black box.
Spites, textmesh, etc…

Like this…

This is a Unity3D editor Screenshot, but my situation is on the Android app, not Editor.
How can I fix it?

Thank you for your help.

Pink means shader issues. Maybe your text shader is unsupported on Android. What are you using?

Hello,
I use the Unity textmesh, not a custom text shader…

What version of unity are you using? Have you tried the latest patch version?

Well, I found this situation.
Press the Android Home button while the Unity app is loading(Splash image), always occurs.
I use Unity 5.1.2f
Should I update my project to 5.3.1??

If possible. We would not be able to fix a bug on 5.1.2 but if its still happening on 5.3.x then please report it.