There is a problem while opening the scene file (animation keys are lost once saved). The scene file is saved in .ma format and the characters and BG files are referenced in the scene file and i am not facing this problem in all the referenced scene files and it occurs randomly, the application maya which i am using is version 7.0.
if someone could provide me a solution , it would be an immense help for me to save my precious time during my production schedule.