Oh, good point about the werewolf curse not broken when she kissed Peter. My initial reaction is that she’s not under a “magical” curse — those can be broken with true love’s kiss.
From wikipedia, “…the ability to shapeshift into a wolf or an anthropomorphic wolf-like creature, either purposely or after being placed under a curse and/or lycanthropic affliction via a bite or scratch from a werewolf, or some other means.” Granny related the hereditary history of their family – the family has the affliction of lycanthrope.
Another possibility is the red cloak can prevent her from becoming the werewolf, and also shields her from breaking the curse with true love’s kiss.
As to your point about the hunting party not able to follow the tracks, maybe the show was trying to imply that men are so stupid they can’t even follow tracks in the snow in broad daylight! 😆