I'm new to Helpful Gardener and this is my first post. I bought a succulent (Graptopetalum amethystinum I think) recently, and at the store it was perfectly healthy. A friend wanted to propagate it so she cut off some leaves from the plant. Since then the stem has been brown and looking like it's dying. I'm not sure what caused this, or if it can be fixed?
Here are some pictures:
I know the plant probably didn't get enough water at the beginning, so I've been giving it water regularly now.
Any thoughts would be welcome on what I can do to help my plant and get it back to being healthy again! Thank you!