Missing data / possible restart @ 01:05 each night ?

Something odd is happening at 01:05 each night.
I upload a lot of data to the PVOutput website and when I've been comparing readings over several days lately I've noticed I get a spurious 6w solar power figure @ 01:05 each night and oddly when I've tried to compare it to the GivEnegy data I never have a 01:05 time stamp and around that time the reading upload frequency drops to a 10 gap rather than a 5 minute gap.
Can anyone shine any light on the odd sequence of events

Graham_Harrison Had a look at my AC3 data outputs and there are no missing GE timestamps around that tine, they are every five minutes. My GE solar power figure does wobble a bit, around 2 or 3w with an odd max of 6w but that is consistent 'noise' by the look of it..
OEM Inverter, AC3 & 5.2 battery.

SilverArt thanks for your input

How old is the system. There was a very old firmware that did a self restart each night.

hoggy batteries and inverter were only installed last November
Inverter Firmware Version: D0.535-A0.535
Battery Firmware Version: 3009
Last Update Time: 2022-11-24 10:48:50
It did it again last night, I'm convinced its the inverter / batteries doing something

Yeah 2AM restart thing ended with any firmware above D450 - A450 so it’s likely not that.

Graham_Harrison If you look at all of the raw data from the inverter (download from My Inverter > 9x9 Icon) does that give any clues, what other levels spike/drop at the same time?

SilverArt Great thinking, I hadn't noticed that facility.
01:05 is missing AGAIN and the very next recorded data @ 01:07 has a entry of 0.2 in the "Battery Charge Energy Today" Column which was at 0 @ 00:57 which was the previous entry. I've also downloaded yesterdays data and that's the same

Graham_Harrison Now look at all the other readings, at the same time whether you think they are relevant or not, I found reducing all the column sizes in a spreadsheet to 1.75cm and _Allowing Row 1 to "Wrap" in alignment made it easier to view. You might just spot something odd... or not.

My findings so far
I never get a log file @ 01:05, I'm generally getting an entry @ 12:58 then 01:08 (10 minute gap rather than 5)
I'm just about certain the battery is charging for approx. 5 minutes or so from the grid @ 01:02 each night

is your router set to auto restart every night?

positor1 No, I had thoght about that and already checked
I'm now convinced its something in the GivEnergy configuration as its happened again tonight and the batteries charged @ 3000w pulling from the grid for 5 minutes

Graham_Harrison I suspect 'noise' if the graph is similar to your earlier one, something in the house switches off as the base load is going from about 800w to a base load of about 400w at that time. That causes 'noise' in the system' which gives spurious readings. Not saying that it can't be the battery or the inverter doing it, but what causes the base load drop?

Its definitely NOT a spurious figure this time.
I have sensors on all sorts of things and have been monitoring energy usage for years. I've downloaded the log data from GivEnergy and compared that data with all the other data I collect and with what I upload to the PVOutput site.
I'm now convinced that its a setting at GivEnergy's end (or possibly a glitch with the GivTCP addon within Home Assistant)
I Emailed GivEnergy yesterday about it so I'm waiting for a reply.
I'm contemplating turning off ECO MODE for a few days to see if it still happens, I already have all the other settings disabled as I'm not on an overnight cheap tariff