Creating a sapling tree in blender works well, for example this tree below
However, if I select the leaves and go into edit mode, the leaves become like this
at this point, I can undo(ctrl + z) and it will revert back to normal, however most times, going into edit mode is not the cause of the error, I just find that all my trees have become like this and I can't undo it.
from my observation, the tree has changed in such a way that; the origin position of each leaf is only found on the top of the branches.
I have six trees in this scene, all of them became like this and I don't know why, I only know that I can achieve the same thing by selecting the leaves of a tree and going into edit mode.
I am running blender 2.9. thanks