Strange behavior with XW6848+ today

Another new day! lets see if it borks on me again, presently the house tested at several plugs in several rooms is hovering at/around 127-129 volts using the kill-a-watt as my testing medium... which is par for the course the past week or so, and my UPS units are all reading about the same. I know for certain my UPS used to read around the 110 range. Still no word back from the utility company, but over the weekend I imagine they are closed unless emergencies arise, and this doesn't technically qualify as an emergency. I've been scouring the Schneider forums and seems what I am experiencing is the "Anti-islanding" feature which prevents power from going back into the grid in a Grid Support-on scenario and something doesn't meet specification. Does this affect the built in transfer switch? like if the error were present, and I lost grid power due to a blackout, would the transfer switch kick in and I start running off battery-bank power like it should, or if there is an f33 error and the power goes out I'm just ass-out with no juice in my house? I've actually had several short power outages over the years here but I never noticed, only way I found out was my neighbors calling to ask if power went out and I would have to walk out to the garage to see if the inverter was switched into that mode.

Makes sense, somewhere in one of the Schneider forums it said that in some areas anti-islanding feature can be turned off with permission from the power company, but in my mind it sounds like that would possibly mess with the transfer switching capability and could accidentally backfeed power into the utility lines during a power outage and potentially fry someone working on a line somewhere and I wouldn't want my equipment to be the cause of that. I'm pretty unsympathetic to a lot of things, but I would feel pretty shitty if my setup was the cause of someone getting hurt like that.

14:59:49 the error came, combing logs now to see if maybe I can see the voltage spike

Got in touch with someone at the utility yesterday, about an hour ago there was some sort of outage in the area (they notify everyone with the mobile app that there is an outage) and when it all came back online my AC L1:L2 voltages are hovering right at 120v and all is well again! 

So I got the technical explanation, something at the "station" was wrong, a regulator was intermittently failing, causing spikes here and there which sounds about right with my symptoms. They said they usually get alerts for this, but since it was intermittent it didn't flag, and apparently I was the reason for them finding out so they thanked me I also apparently the only person with Schneider gear, they are familiar with Sunny-Boy stuff? So I will also can assume that Sunny-Boys don't have the same level of monitoring or fail-safes?