When “Enlarge selected track” is selected, if you click a point on an automation curve in an unselected lane, the lane will expand and the point will instantly be moved to a completely new position (the position of your mouse cursor now that the lane is expanded). This should not happen.
- Go to Preferences, Editing, Project & Mixer and make sure “Enlarge Selected Track” is checked
- In the project window, click on a track with automation
- Click the + to show the automation lane. (Note the lane is not yet enlarged.)
- Click any exiting point on the automation curve.
The automation lane will enlarge. The point you clicked will move as if you had meant to drag it to where it would be when the lane enlarged.
The point is selected but unmoved and the automation curve is unchanged by the lane enlarging.
The workaround is to click on the lane to enlarge it before clicking an automation point. But it’s too easy to accidentally move a point (sometimes without even noticing).