Have you spent a ton of time editing a specific Beatgrid only to have it wiped out when you re-analyse your files?
There's an easy way to avoid this and lock your Beatgrids. Once you have edited your Beatgrid, hold control and mouse click on the first column of the Serato DJ library.
This will show a lock icon in the first library column for the file you have edited. That way when you try to drag the file to be analysed the Beatgrid will not be overwritten.
To unlock a file, hold control and mouse click on the first column of the Serato DJ library again and the lock will disappear. You can now edit the file again if you please!