What i noticed,
u must always Animated ur object TWICE at LEAST in unity3d to get ur animation …
Its bored OMG , am tired from it !!!
Not sure what you are saying here. Is this likely to be a bug or just an annoyance? If you can give some more explanation of what is happening, it might be possible to suggest a workaround.
@crazyosachou I agree, When you make a animation in Unity couple mins later the animation file is still there but the animation somehow randomly erase and you have to animate that object over again it is annoying and i think it’s a bug!!! grrr
Curves erase, its true … i guess that happen when if you finish building your animation, you must to press Rec button again inmediatelly… that way it works… (for me at least)… curiously in Unity 3 i stopped having that problem…
:o oh i didn’t know that
u know now how am using camera animation ?
When i start a new project , i create at least 5 or more cameras , depending on how big is ur scene … thjen i’ll animate them all just randomlly … then i save , i refresh …
after a while ( cup of days ) i’ll back to them , for sure i’ll find them all with there files linked , but no curves , i reanimate them but now they’ll will not disapear again … it s game in side the game engine 
i’ll try to post a youtube video for this Bug !!!