0008191: Dwarf fails to find path back to surface; stuck in climbing mode?

ID	Project	Category	View Status	Date Submitted	Last Update

0008191	Dwarf Fortress	Pathfinding	public	2014-08-30 09:48	2014-10-10 11:22

Reporter	Dekker3D	Assigned To
Priority	normal	Severity	major	Reproducibility	sometimes
Status	new	Resolution	open
OS	Windows 7	OS Version	7, x64
Product Version	0.40.10

Summary	0008191: Dwarf fails to find path back to surface; stuck in climbing mode?
Description	So I have a save where I sent a squad of dwarves into the third cavern layer, via an underground passage. The leader got stuck there, unable to find a path back to the surface. This happened in 0.40.08 or 0.40.09. When loaded in 0.40.10, the leader walks away from his previous hangout, and instead starts climbing the underground trees and some of the walls, without gaining climbing skill. When I tell the whole squad to go to a location right next to this dwarf, he's the only one complaining that he can't find a path there. At some point, in 0.40.09, two carpenters ended up down there for hauling duties, got scared by crundles, and also lost the ability to path, before I savescummed back to a moment before it happened.
Steps To Reproduce	Make a dwarf move down to a cavern through an underground passage, and then scare them or get them in combat?
Additional Information	https://mega.co.nz/#!pkMWjITK!QCMoCwN1sudTEDASGayhQWK50lTrqbfEmimlCTzM2KQ should link to the save file, from the Dwarf Fortress 40_10 Starter Pack r2.
Tags	No tags attached.

Note

Date Modified	Username	Field	Change
2014-08-30 09:48	Dekker3D	New Issue
2014-09-03 08:44	~~user6~~	Relationship added	related to 0006586
2014-10-10 11:22	smjjames	Note Added: 0030603

smjjames 2014-10-10 11:22 reporter ~0030603	I'm seeing this with trees where if a companion (zombie or otherwise) are able to climb a tree, but cannot get back down. Particularily noticible in forest retreats when companions follow you up a tree or zombies climb trees to attack.