I think the problem is likely high arousal and frustration.
I am not a professional, just an owner but I have a working bred collie and collies and huntaways are both typically very high strung sensitive breeds, extremely easy to overexcite/overwhelm.
It doesn’t always take much to send them over.
My collie for example, with calm, peaceful walks is a dream.
Very calm and lazy.
Anything ‘stimulating’ or ‘stressful’, even if it’s a so called ‘good’ stress like agility, training sessions more than 10 minutes or so, anything more than an occasional and brief game of fetch etc overstimulates her and she gets whiny and anxious and downright unpleasant.
I would keep her on a long line and just walk.
Nice, calm, pleasant walking.
No brain games, no interacting with other dogs, no fetch etc and see if she improves.
I bet she is stressed and overwhelmed.
Excessively rough play I believe can be a sign of stress and anxiety.
Re socialisation.
Generally speaking, once mature, herding dogs like collies and huntaways don’t tend to be very dog social like say, cocker spaniels or labradors tend to be.
They tend to be aloof and focused on ‘their’ people and doing their ‘own’ thing.