it has been raining a lot lately but temps really haven't been below 60-70 at night during rain.. would this purpling be because of rain water sitting in the nodes??
they look like they are wet the majority of the time causing that wrinkly look, some strains are just purple and show more purple at lower temperatures
that is a purple variety so you must have one night where the temps dropped down to around 50 degrees, hopefully by the time you harvest you will receive some cooler temps so that the plant will turn a nice solid purple!.