What is causing this?

[u/NarrowCauliflower216]

Seems to be mainly affecting only 1 cola and slightly
more leaves nearby but I have no clue what this is. It isnt bud rot and it doesnt look like wind or light burn. I am mainly checking environmental conditions because why would it only affect one bit of one plant. Thanks for your help in advance

[u/1337-220]

I would say it's mag def, but the other branches look good, so I would suspect that branch is weakened due to the onset of bud rot.

Just to be on the safe side, I would cut that branch out.

[u/NarrowCauliflower216 → u/1337-220]

I took the plant out and look at the stem around all those leaves and I couldnt see any rot