I'm having this issue as well. I just renewed my subscription, believing in good faith you'd continue to support PS 'upgrades'.
I'm a long time customer, 10+ years - I'm not over the moon at having to mess about like this in order to get TN2 working.
I don't get the option for old themes, they just make me use a new one and T doesn't do anything, all clicks just sent to chat box.