Attempting to set the count to 1 or 2 does not work in the feature file. It looks like the count HAS to be 3 or higher, so I'm curious if someone found a way to do this.
I tried looking at the emerald ore feature, since I thought that only generates in a max vein of 1, but unfortunately this is only true for Java Edition. On Bedrock Edition it can generate with up to 3.
This seems like a failure of the current world generation system than anything, so as far as I'm aware I'm pretty much stuck with it. Does anyone have a solution?