Help! Trimmed Content is still visible!

[kaye.king]

Adobe After Effects CC - Mac
I've got a very long video segment which I've trimmed into various layers.

As you can see, trimmed content is VISIBLE, even when layer visibility is turned off AND even when I (in desperation) I keyframed trimmed content to 0% opacity.

I'm going crazy! I've been using AE for a year and never had this before...what am I missing? Is there a bug in the latest update?
Thanks so much for any help you can give

[imeilfx · Accepted solution]

You are on layer preview window and that is why you an see your layer. Switch to Composition preview window to se your composition with all layers in there.

[kaye.king]

Wow. Such a simple thing 
Thanks so much!

[imeilfx]

you are welcome. If you have anymore questions you know where to find us