attachMovie is playing favorites!

this is just weird. i can put ANY movie clip onto the stage except the very one i NEED on the stage… the clip’s name and ID are the same, they are referenced correctly, but will not load.

any idea what this could be caused by? the MC has 3 frames (each holding another MC) inside it, but when i try to attachMovie with any other MC it works just fine, even some that are much more complex.

??