Colors are gone

Hello

This is strange: I created few characters and when added some bone structure some colors disappear. Sometimes they come out again and later they are gone again. And saddest thing is that when I check my final movie colors are missing. See attached file:

There’s not enough info to go on.
I would double-check all drawings.

If you separated the colour and line art
the colour part may be offset somewhere
elso on the canvas - try zooming-out and
using the select tool to find it.