TextMeshProUGUI Vertical Layout Group Overlaps Text

I am trying to build a chat box with a vertical layout group, TextMeshProUGUI objects and a content size fitter. I am running into vertical text overlap issues, as seen here:
Any idea why this would be happening?

Ok, so setting “use child scale” height to true fixed the issue. Honestly, I’m rooting around in the dark with this. I know what each filed means technically, but nothing does what I expect it to do. Does anyone know of a good tutorial for text mesh pro? It is clearly superior to the Text class, but comes with a lot more knobs and dials.