Just a thought but I am wondering about the roots. That is a large plant and since it was recently repotted the root ball must have been fairly small to fit in what appears to be a small pot. Are there enough roots to support the top growth? If not, why not? Vines tend to have large root systems to support the rampant growth. Too few roots could explain the wilting i.e. you need roots to bring water and nutrients to the top growth. Certain fertilizers like Miracle Gro tend to push top growth, if it were mine I would hold off on the feeding and just provide the appropriate water and light for a while. After the plants shows new growth a bit of a slow release food would be good.
I grow my Bleeding Heart in filtered sun and have to severely prune it annually. Like most Clerodendrons they get huge.
