LightTable Trouble- Cannot See Frame Ahead

[AlociJo]

Here's my scenario:

I've got three frames. The first and last frame both have an image on them.
I'm drawing on the second frame using the Light Table as a guide.
The image of the first frame shows up with the Light Table. But the image for the last frame does not.
However, when I click on the last frame, I can see the two frames before it.

I've tried adjusting the settings on it but I still can't get it.
I'm afraid I'm just screwing around and missing an obvious solution.
And help is appreciated.

[slowtiger]

Open the lighttable panel and check which colour is chosen for the frames ahead - if it's the same colour as you background, they will appear invisible.
Of course you have checked which frames shall be visible (checkbox on top of each frame fader)?

[AlociJo]

I just figured out the problem.
The first two frames are on as Image Layers.
The third is an Animation Layer.

Thank you for your help though.