I had a large assembly open and i was changing the appearance of parts in it. after 30 or so it locked up and immediatley crashed. after changing the color of each part i saved while the part was open. i had not yet saved in assembly mode. On reboot i opened the assembly to find that all my appearances reverted to default so i did a rebuild and ctrl+Q to no avail. i opened an individual part to see if the color was corect and it wasnt, even though i saved before the crash. Am i stuck repeating everything i did before the crash? where did my changes go?