One of my movie clips disappear in the last frame (!?)

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Hello. I have created an animation which consists of several movie clips.I have added an stop at the end of the main Time Line so that everything gets stopped. But when managing one of this movie clips ('mywindow'), I don't know what I have done (I have gotten it to stop and to play later on) that now it disappears in the last frame, and it shouldn't.I don't know how to correct this and why this happened.I would appreciate any help.This is the link of the file: https://hotfile.com/...facade.fla.html Thank you vey much,Regards

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I have managed to solve it.I don't completely figure it out and since it is a very particular problem probably it's not neessary to explain (or try to.) what i have done.But if someone wants me to try I am ready and set. Regards