Glad you've got some healthy lambs

, sorry to hear about the dead one. We all get them

- just concentrate on the live ones

I'm intrigued by the vet's comments wrt the prolapsing ewe. I've never heard a vet suggest that a ewe who prolapses will have ring womb, so I am wondering what was different about this ewe? And it sounds as though she didn't have ring womb anyway, thank goodness.
Sorry to bring it up, but did the vet advise you whether you should keep the ewe on or cull her once she's reared her lamb?
I'm also interested to hear, especially as the vet was having trouble replacing the prolapse, whether s/he used anything to reduce the swelling before attempting reinsertion? We use caster or granulated sugar - rub it all over the mass (once you've cleaned it up) and give it a few minutes; it'll reduce something the size of a football to something the size of a grapefruit. Magic! (And much easier to reinsert

)
I've read but not validated that the sugar may help to reduce the risk of infection, and that some farmers used to smear honey all over the everted tissue before reinsertion to do just that. We still give antibiotics anyway, seems only sensible.