Another update from yesterday...
SO along with pH being wrong, and her tent being super hot at the moment - I also remembered I had accidentally left the lights off for a full day - which could account for the single bladed leaves.... somewhat reverted to veg... which makes sense as bud stopped and she seems leafy again...!
anyway, NOW I’ve managed to bring the heat down a little, she’s happier and hopefully she can just get stuck into budding now... I am getting damn impatient!