you have an intermittent oil leak is what happened. lol
could be something with heat expansion and thinner oil allowing a leak, dirt in the pan clogged it after a bit, it was overfull to start with, spilled some adding to it before and it dripped down just then, I dunno. carb/brake clean the whole area and see if it comes back.
could be something with heat expansion and thinner oil allowing a leak, dirt in the pan clogged it after a bit, it was overfull to start with, spilled some adding to it before and it dripped down just then, I dunno. carb/brake clean the whole area and see if it comes back.