Magic Mask again, anyone here knows how to undo?

Dear all.
I know that every change happend to the node, will make magic mask data lost. And should re-track again.
But, my case is different.
I have successfully 30 minutes tracking magic mask. Yes, i have set it to Better, remember, i have set it BETTER. After finish tracking, i try to edit blur, and accidently, i click "better" again, and my 30 minutes of tracking data LOST
Anybody knows how to undo, or restore or should i re-track again?

Lost object mask.jpg (192.25 KiB) Viewed 1173 times

Hey there!
Unfortunately you have to re-track again. It happened to me with several skins and sometimes when you reset and start you have to pay attention to put faster or better. Perhaps, it is best to have different versions, perhaps with that you can do a step back... It would be nice if that data was not lost. And also that they fix the power to lock the magic mask to be able to touch previous nodes without having to re-track each time and at each step.

The tracking data is stored as a series of image files (somewhere) and I've always assumed that when the magic mask image cache is cleared, those files are removed from your drive. My guess is that this sort of operation cannot be undone. Just a guess, though. Sorry.