2012 prius 84k miles random misfire

I've had quite a few gen 3 priuss and this is the first one that I think might have a headgasket leak but it only has 84k miles and runs great and gets 55mpg. The issue I keep having is cylinder 2 and 3 will get a misfire when transitioning from eletric to gas for a few seconds then smooth out but only when the engine has warmed up. Never does it when the engine is cold starting and sometimes live data says its 2 and other times it's 3. No overheating, no codes at all, and no smoke out the tailpipe. There was coolant loss but it was due to a loose worm gear clamp on a radiator hose. Haven't driven much since fixing the leaky hose but the misfire still persists after refilling and bleeding the system. I swapped the coils around but that made no difference and replaced 12v battery. Pulled egr tube off and it was somewhat dirty but not obstructed and I've had priuss with much worse clogged egr systems still misfire less then this. Engine coolant temp never gets higher then 202 on the interstate mostly hanging around 195. Anything else to look into or is the headgasket the only thing left? And again it never misfires on cold startup.

 

Did you read it closely? It doesnt do it when its cold at all and I did move the coils around and it made no difference. And I saw the misfires from live data. And I haven't gotten around to the plugs I've just never seen one with such low mileage have bad plugs only time i had failed factory plugs was on a 210k oil burner. I guess compression test is next after checking plugs tomorrow. Also it burns no noticeable amount of oil

 

I'll check that tomorrow

 

Previous owner replaced radiator last year after a minor front end collision caused a pin hole leak and replaced the spring clamps with worm gear style but I replaced it back with the good spring type and it hasn't leaked again and carfax says the mileage is correct along with the interior looking like showroom condition. Over the 10 or so priuss I've had its always been the low mileage ones that have the worst issues unfortunately.