Simple Tween, Unwanted Artifacts

Hello!

I’ve got a simple tween that starts with text in an mc scaled to 1000% and alpha at zero, the ending keyframe has it at 100% scale and 100% alpha. A simple effect.

A strange problem has arrisen, the text leaves a trail of sorts and there are some unwanted artifacts. Have a look at this screen shot…

Has anyone encountered this problem before? If so, how might I work around it?

I have checked the canvas and there are no stray movie clips or anything. Publish settings don’t seem to have an effect, it happens both on Best and High qualities.

Thanks in advance for any insights! :slight_smile: