Hi, plants seem to randomly flip left right. I have an edge case where this needs to not happen (just with one plant), but I can't see what setting effects this. There is nothing obvious in PlantBase, so I suspect it is hard coded...
Try removing CutoutPlant shader.
I tried removing it; turns out you can't do that, because it only exists on the base. So I tried adding a shaderType of Cutout instead of the plant one, but the same thing happens. Odd.