I am using flowcharts for a few activities, and while Auto arrange sort of works for small flowcharts, it completely messes up for larger flowcharts.
Even if those flowcharts are planar and can be represented without any crossed arrows, they are messed up.
Here is an uncessary crossing. Plus if I replace “FFFFFFFFFFFFFFFF” by F, the arrows are sort of better, which makes me think that the auto-arrange is done with the nodes as if they were of minimal size and not their actual size.
In fact, even for small charts, it’s not exactly good. Example here:
As you can see, the RG1 box true arrow and the RG2 box true arrow are so close to each other that it hurts the graph readability.
Anyway, there’s no reason the Auto Arrange can’t produce a nice flowchart with no arrow crossing if it’s possible.