[All tree supports merging together]

I've printed a couple of things with tree supports and all was well. But all of a sudden, all of my tree supports are merging into one big "wall" of supports. This is true for a new model and for a model where I previously had tree supports that looked a lot more traditional. I've tried resetting all settings to original, but am still seeing the issue. Any thoughts about anything I should change or check?

 

Thanks in advance! David