Hey there
try clicking the automation write on and off and see if that helps.
I saw an issue were writing automation from the TH2 didn't record even when write was enabled.
I walked them through it and got them to repeat the issue in tech support so they know it's possible. Just clicking and the W twice seems to resolve my issue with it, but it can be frustrating if you fail to capture something.
One thing to keep in mind is that automation should be visible in Track view during recording, so if you don't see it... better check it.