I think it would be a good Idea to submit a bug report at this forum section as well. http://forums.terraria.org/index.php?forums/mobile-bug-reports.149/ Be sure to describe exactly what happened before and after the glitches happened, like what you were doing, where you were, etc.
Terraria Community Forums
Shaedric
The Omniboss
Actually, I was just booting the game up when the textures disappeared. Some textures stayed, others didn't.
darthmorf
They just released a fix today.