So sorry to hear this... Hugs to the owner...
As for Crystal... Just be very aware of everything going on with her... Make sure you have EVERYTHING handy... including vet number, someone's number here, and all your supplies...
When it comes to dystocia in Minis... There seems to be two common problems (there are probably others, but these two seem to be the most prevalent)... Either the baby gets hiplocked and/or stuck some way, or the baby is born and cannot get out of the sack... Someone on here can tell you how to 'dislodge' a hiplock (Toni just told me that there is information on dystocias at the top of Marestare Forum).
We've lost three foals to redbag in three years because we weren't present at the time of birth. We missed the foaling between checks with all three (1 mare had two redbags, the other mare just the one). Our conclusion: Be there at all times!!!! Even if you have to sleep next to the stall, with a string around your big toe and the other end around the mare's neck!!!
We have one mare due end of June/first of July. She's one of the mares that redbagged on us last year... Toni and I both will be out there in shifts all night and day... Especially for this mare as she is blind in one eye (pasture accident) and has trouble seeing out of the other eye (it's blue).
Kari