Fusion 16 mask editing

Hi, I've noticed one thing when working with masks: when I draw the mask for the 1st time with Click Append tool, I am unable to break the bezier handles while holding the Ctrl button — I'm getting a box selection instead.... actually I can't find any way to break the handles interactively until I switch to any Modify... tool.

Am I doing something wrong or this is a normal behaviour?
And if it is normal... then why? Isn't it faster to create the final curve for one pass (by inserting and correcting the points in place) instead of two (create raw curve and then refine with "modify" tools)?