A sudden change in an automation curve means two nodes very close to each other with extreeme different values.
The key is "very close" and to see/adjust those nodes, I'm afraid" you have to zoom-in to do that.
The other option is to use the Command whcih create the two nodes 1 frame appart
Mix ➤ Create Automation ➤ Create Two Automation Points at Region Border
or even better:
Drag a marquee selection over the Automation Lane and then drag the selection up or down. THis creates the 2 Automation Points at the left and right border of the selection
Hope that helps
Edgar Rothermich
http://DingDingMusic.com/Manuals/
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