Flash CS5/AS3 - MovieClip disappears when dynamically changing width/height property

[bangnd2]

Hi everybody!

Here's my problem: a movie clip symbol is designed and subclassed in Flash, but get instanced and addChild-ed in AS3. It works well as long as I don't change it's width/height property (scaling works too), but if i do, it disappears

Please help me, thank you.

[5Five555]

Please help me help you by posting relevant code. Only guess I can give is that the algorithm that calculates the width/height is giving you 0/1/NaN.

[bangnd2]

Thank you for your reply !
Actually, there is no relevant code to post. It's just simply like:

var mov:MovClass = new MovClass();
mov.width = 200;
mov.height = 200;
addChild(mov);

But the mov doesn't show up until I comment the line 2 and 3, or use mov.scale instead.
Any idea?