sprite.setFrame problem about angle HOT 4 CLOSED

There isn't any reason for that.
Your code is simple. An infinite unsynchronized animation loop.
If you are sure your object will don't have any children object you can not 
call super.step

Can you reproduce this issue always?

yeah, always. I only modify Tutorial02 to add a new animate sprite, see attach

I noticed your texture's dimension isn't power of 2.

On my hero, I can't load textures that aren't power of 2. Maybe your device can 
render these textures but fail after a while.

Try to use power of 2 compatible textures. With the attached texture, your 
sample run fine forever on my hero.

However, I use another Engine:Rokon, can show picture which isn't power of 2, 
so maybe Angle should fix some code to satisfy all pictures