Humboldt said: Looks like minor past bug that the plant has moved on from.
I've seen similar from slugs and snails.
Tons of snails here, I'm plucking them out of my jades all the time.
I just toss them back into the yard.
If I leave mail on my front porch for a couple nights they eat it.
But no, I think whatever caused that was a while ago. Guessing.