Going to try and explain this best i can. I have an assembly with an animation, and multiple configurations of the same part. I have inserted the part 8 times to match my 8 configurations. I have done a show hide on the parts in the animation, to show the part expanding. Problem is, i have multiple appearances on the part, but in between keys the part has only one appearance that covers the entire part. Directly on the keys the part appearances are correct, but in the half second between showing and hidding the next configuration, the entire part is one appearance. I have found that there is an appearance added at the assembly level in that half second, but after deleting it, it just comes right back. here are some images to maybe explain better. Is this just a glitch? and if so any work arounds?
IN BETWEEN KEYS
MATERIAL THAT COME BACK