12 800s Steering not EPS

Had something strange happen this weekend: 2012 800S w/1800 miles
Riding down the trail at about 30MPH, all is good. I thought I had missed my turn, so stopped, backed up, Ok I’m good.
Started out again, the frontend was all over the place, wondering from side to side, felt like the frontend was going to fall off!
I stopped and made sure everything was attached and tight, turned the wheels by hand side to side a couple time to see if anything looked wrong. All was good, stated off again, steering returned back to normal for the rest of the weekend. Anyone else experience this or know what the cause is?