I am animating materials on a number of referenced models and experienced some amount of inconsistency with this feature. I am animating weights in Mix 2 Colors nodes to animate some textures - on some referenced models it keeps the animation after reloading the scene but on other technically identical referenced models, the animation is lost. If I inspect the delta fcurves on the ref models where the animation is lost, I can inspect and see the animation on the fcurves, but if I inspect the material in the Render Tree is is not there.
What gives? Do I have to do some delta house cleaning or are there other little trick to get this working consistently? Morten