Hey All I think I have worked out the solution to this 🙂
In Preferences/Record Warp Launch/ Record Session Automation in Make sure it is selected as “All Tracks” (Which is blue in my Live 10.1.18)
This may be the default in Live and I may well have changed it to Armed Tracks at some stage in my setting up phase.
Hope this helps someone out there who may have been baffled by it