This (left pic) was my succulent a little over a month ago, the leaves were yellowing/browning and getting soft. I suspected it was rot so I dug it up looking for "black slimy roots" that people have mentioned on other threads. This being my first succulent, I couldn't tell if there was rot - roots looked normal/not slimey.

Just in case, I cut off the offshoots and pulled some healthy leaves and cut off the crown. In a week, they were all rooting so I planted them. Now two weeks later, a lot of the leaves have gotten brown and soft as well as leaves on the offshoot (right pic) and crown ...

What can I do to save my plant? Is this even rot? Any help is greatly appreciated, thanks.