Division problem: What am I doing wrong and how can I fix it?

[BrassavolaStars]

Originally Posted by Louis_W

I would just stay the course and keep it stable until those new roots come. Accept that the rot may spread and take out a couple older bulbs. If you get the culture right the new growth will take over and it won't matter so much

You don’t think I should just cut that rot part off? Maybe do that and cover the wound with cinnamon and another dose of heritage?