[Jay_Li]

Why does it cause this

 

[25hewitt17]

What happened there

 

[Ponky]

Root rot maybe

 

[mancorn]

I’d guess Botrytis as it will take down a branch in just a few days. And especially since it’s effecting a specific branch(es), as opposed to the entire plant. Look at the effected stems where it meets the main stalk and see if there is a gray fuzzy mold. If you do have Botrytis the effected stems are toast, you’ll have to cut them off and toss and hope that you can keep it from spreading.

 

[Oldchucky]

Looks pretty wet. I elevate my bags on a couple of pieces of PVC or whatever to get some airflow underneath them. Even the 25 gallon ones.

 

[groran]

Have to be careful on soil mix. I had one bag that was miss mixed from my usual mix. Noticed the plant wasn't doing as well as others. Came time to transplant to a larger container and the bottom half of the soil was waterlogged and stunk. I noticed that it had very little aeration mix and was almost just mud.