According to the picture here: Automatic Navigation Link Generation | Unreal Engine 5.5 Documentation | Epic Developer Community increasing the Jump Max Depth should generate links from higher ledges down to lower ones and it should never cause the number of generated links to decrease.
However, in a blank third person template project in UE 5.6 preview or UE 5.5.4, I observe the following behavior. If the jump max depth is 250, links are generated from the medium heigh platforms but not from the low height platforms like the cylinder on the bottom right:
If the Jump Max Depth is decreased to 100, the higher ledge jump links are deleted (as expected) and lower height ledge jump links are created (they should have been there already per the documentation as decreasing the MAX jump depth should not generate new links that don’t exist when the maximum is a higher value).
Finally if I make the Jump Max Depth a big value like 1000, no links are generated at all, not even ones from the tall ledge on the left
The only way to get links to generate on all the ledges that should have links with a Jump Max Depth of 1000, is actually to use a low Jump Max Depth of 250, but to make the Jump Ends Height Tolerance a large value like this:
However, even that doesn’t work if the Jump Ends Height Tolerance is too large (again per the documentation increasing this should only add more links, not delete existing ones).
It seems like either I am fundamentally misunderstanding the documentation or increasing Jump Max Depth should always increase the number of links generated and similarly increasing the Jump Ends Height Tolerance should always increase the number of links generated, but that is not the case.
Any help is greatly appreciated.