Subaru outback 2016 - headlights turn on and off randomly

I just bought a used 2016 outback, and I've noticed
a weird problem with the headlight(s). It's hard to
nail down what's happening, since it only seems to
happen while I am driving. Best I can tell is one of
my headlights is going on and off. Not flickering,
and it's not all of them, so I don't think it's a battery
or alternator issue. I thought maybe it could be a
loose wire or fuse problem, but I'm not sure. Just
wanted to see if anyone else had a similar issue.

For the record I do have a warranty, but I can fix it
in a few minutes for a few bucks, I'll gladly avoid
that mess.