How come your charts show funny times on NT? fwiw I think have a similar issue
It only just happened the other day Quake, they used to run fine on the template I'd made with my comp on melbourne time and the chart session showing 11:15 till 2 then break etc. etc. but something has gone astray as I'm only able to get it to show the right data if I use the standard HKFE and change my comp time to Hong Kong time. Gonna have a play around this weekend.
If you get a chance put up a screenshot of your session manager template aswell as data series what session template you're running.