# Mask effect problem

**URL:** https://forum.kirupa.com/t/mask-effect-problem/310831
**Category:** Uncategorized
**Created:** [June 20, 2010, 10:12pm UTC](https://forum.kirupa.com/t/mask-effect-problem/310831 "2010-06-20T22:12:59Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![LS05](https://avatars.discourse-cdn.com/v4/letter/l/e19b73/32.png) [@LS05](https://forum.kirupa.com/u/LS05)
#### Post date: [June 20, 2010, 10:12pm UTC](https://forum.kirupa.com/t/mask-effect-problem/310831/1 "2010-06-20T22:12:59Z")

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Hi guys,  
I’m creating a mask effect. i create 10 movieclip with a library class reference that appear on the screen with a random alpha effect. THe problem is that if i try the effect alone all works ok. if i mask the layer that contains the effect on an image i don’t see the effect. i see directly the image masked with the boxes. i can’t explain that because i’ve the effect first but it seems that when i test the movie the effect doesn’t play and the boxes appear directly on the screen.  
Here the file: [http://www.megaupload.com/?d=DVKVWXXE](http://www.megaupload.com/?d=DVKVWXXE...please) please help me !!!  
i advise you to run the file without the mask first to see the effect first.

(the image is in the library).