# HELP random movieClip behaviour

**URL:** https://forum.kirupa.com/t/help-random-movieclip-behaviour/198991
**Category:** flash
**Created:** [August 30, 2006, 10:24am UTC](https://forum.kirupa.com/t/help-random-movieclip-behaviour/198991 "2006-08-30T10:24:19Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![tolk](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/tolk/32/2496_2.png) [@tolk](https://forum.kirupa.com/u/tolk)
#### Post date: [August 30, 2006, 10:24am UTC](https://forum.kirupa.com/t/help-random-movieclip-behaviour/198991/1 "2006-08-30T10:24:19Z")

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One of the movieClips on my stage keeps dissapearing when i run the fla. Flash is still registering it (i can trace out its co-ordinates, alpha, visible, width, height etc.) but it’s not visible on the screen and other movieClips wont interact with it. Iv’e checked its at top of visible area etc. and from all i can tell it should be visible but its not.  
The movieClip is using a class file i wrote which was working before.  
Basically what happened is it was all working, there was as on the first frame referring to the movieClip. I accidently added a keyframe to the wrong layer (the layer with the mc on, so the mc was no longer present in the first frame). I compiled and tested and i saw what i had done, i presumed it was just becaues the mc was no longer present on the first frame. I undid the changes and now it continues not to work. I’ve made no other changes and it’s really weird. plz help!

EDIT: OK i did some more testing and its as if its no longer registering it’s class file, when i try and trace out any of the class variables i just get returned undefined. I still can’t figure out whats causing it.