lactate-threshold auto-detect is drunk in v26.09 ?

my Fenix7s greeted me with this at the end of my run today

nice but except one problem

I never ran that fast and my heartrate never exceeded 155bpm, it was recovery

and note that I don't use optical HR but rather HRM-Pro-Plus so the HR is always accurate

and the pace doesn't use GPS but rather Stryd forced for distance/pace

what's extra weird is I cannot find this new LT recorded anywhere in the FIT file in the two previously undocumented locations

my Fenix6s never did this, it was VERY stubborn about new LT with the same devices/configuration, usually had to be running as hard as I could into the wind for it to trigger

what's also weird is when I was setting up the Fenix7s a couple weeks ago and it imported previous activities

it "invented" a new LT pace/HR out of the blue too based on those activities, it was 168bpm x 7:10 so this is vaguely plausible/logical

but I still don't see where it came from, I never went near any of this today: