But apparently the software update wasn't the answer and it might be a faulty telemetries module, but they haven't seen this before so have raised a technical query with the mothership. Optimistically they have said it should be ready by next Friday, but obviously they don't know the answer yet.
Bike is a 2019 model with 6k on the clock, only had a service a couple of weeks ago as well

I have a F900R as a loaner, which is quite a hoot.