The bad news first: the old automatic weather station has developed yet another fault, this time with the rain gauge, which is resulting in intermittent failure to record rainfall.
The good news: the new station is operational and logging data, but this is not currently being published to the internet, although it is being recorded into the new weather database.
Once the new site goes live, hopefully early next month, the historical data from the new station will be present and correct. Obviously I'm focusing my energy at the moment on getting the new station online rather than investing time resolving issues with the old station.
Apologies for any inconvenience caused in the meantime.