Generated textures disapear on Android after standby ( or are black on iPhone)

Hi all!

I used set/get pixels functions to generate in-between textures when the game load to keep my build size low. It is very very important for me.

On PC: Everything is fine.

On Android: It works well until my phone fall in standby mode (receiving a call, close the phone, etc.). When I resume the game, all the generated textures are gone! My character turn grey when I set texture on the character!

On iphone3: Textures are always blacks...

Your are my last hope, I saw nothing on the net, on forums, etc.

HELP! thanks!