Strange results from counters for daily and monthly energy

[gg3390]

Hello, many thanks for sharing your configuration - it has been a massive help to me in getting my own dashboards up and running with my huawei inverter and PV. If I could, there are two aspects that are confusing to me, and these relate to your utility_meter configuration for house_consumption_energy_daily and house_consumption_energy_monthly.
I am basing my daily counters on your yaml in the file packages/huawei-solar-energy-flow-card-package.yaml, and similarly for my monthly counters. Currently my daily house consumption totals are correct, however my monthly ones are very wrong. I reconfigured my HA on 31st august, hoping that the change to the new month of september would have reset these totals and that they would become correct, but this has not happened. It appears from the graph that the monthly totals only go wrong once solar is being generated - before and after PV is generated (i.e early morning and later evening), the increasing monthly totals appear correct
The only difference I can see between daily house consumption and monthly house consimption is that the monthly yaml uses inverter_total_yield. If you could point me in any towards how I might troubleshoot this I would be very appreciative.
The other issue I have is that on every daily reset there appears a negative spike just at 00:00:00 - I cannot account for where this might be. I attach screenshot for your perusal. Any pointers in the right direction would be most helpful. Thank you again.