I had previously recorded quite a few tracks of automation that session, and they'd all kept the detail. In the case of the problem track I could see the whole curve being recorded, it just hugely simplified as soon as I stopped recording.
I'm guessing there's some setting I've accidentally flicked, but I can't for the life of me think what it is. I couldn't research into it too much as it was about 1:30am
Any ideas?
I'm using an Athlon 64 PC and a Behringer BCR2000.
Thanks!
Ben