Did the male pull his penes out, or did they come out because either he or the female moved? That might make a difference.
This is way beyond my level of knowledge & experience, but it seems to me like the kind of thing that happens now & then with no harm. It probably happens sometimes when we are never aware of it.
It seems like if he was "prolapsed" for only a minute or so, that doesn't seem too bad. In the normal routine, do they remove their penes from the female before retracting them into themselves? Or is it done more simultaneously? I don't believe I've seen anything that goes into that kind of detail, so maybe it is totally normal.
If it were my snake and I couldn't find someone more experienced to advise me, I'd say give him a little longer recovery than usual, and check him out carefully during that time. If all seems well, put him back in with a female and see what happens.
Luckily, there are plenty of more experienced people around, so I'm sure someone who actually knows what they are talking about will chime in soon.
EDIT: Either that or they'll type less than me and end up showing up first.![]()