Movement Bug - Random movement target auto set

While in the campaign, when I move onto a tile with a feature (e.g. bandit pathway and spider lair for contextual locations and statues for graphical locations [square help indicates it is empty]) upon arrival my unit(s) will automatically begin moving in some random direction to a target 4-8 spaces away. I would say this happens about 7 of 8 times I try to move to a triggering square. This has caused several automatically advanced turns and lost progress.

debug.err file: http://pastebin.ca/1924750