Dwarf Fortress Bug Tracker - Dwarf Fortress
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0003015Dwarf FortressDwarf Mode -- Combatpublic2010-08-13 07:382016-12-29 17:00
normalmajorhave not tried
0003015: Invader/sieger mounts flee combat, preventing their riders from fighting (worse with [FLIER] tag)
(Found while testing my Orc mod, but I suspect it would apply to goblins as well)

Siege arrived, one squad with a leader mounted on a giant rat. Despite there being an open path into my fortress, the invaders milled around on the edge of the map, ignoring both drawbridges and ramps into my fortress as well as the human caravan that was present at the time.

At one point, they wandered into range of my marksdwarves, who shot the giant rat, sickening it and causing it to flee off the map, carrying the commander and causing the rest of the invading squad to follow him to the edge of the map.
Trigger a siege with mounted opponents
I suspect that the issue is that the mount pathing (random walk) is taking priority over the invader pathing, and the rest of the squad is following their helpless commander. This seems solvable by either going back to the 40d rider-priority or making the mounts themselves aggressive (and possibly allowing invaders to dismount if their mounts were fleeing)
Flying, Save Included
related to 0000926new  Amphibian invader mounts drown their riders 
parent of 0004200new  Goblins on mounts cannot pass forbidden doors 
has duplicate 0003832resolved Dwarfu Humans are cowards 
has duplicate 0004162resolved Dwarfu Goblin (especially mounted) invaders behaving strangely 
has duplicate 0004935resolved Dwarfu Sieges with [FLIER] tag will sit on the edge of map 
has duplicate 0005505resolved Footkerchief Invader mounts afraid of combat, take riders along for the ride. 
Not all the children of this issue are yet resolved or closed.
Issue History
2010-08-13 07:38RysithNew Issue
2010-08-13 08:01FootkerchiefRelationship addedchild of 0000926
2010-10-09 17:51QuietustNote Added: 0013282
2010-12-21 10:12DwarfuRelationship addedparent of 0003832
2010-12-21 13:23Hieronymous AlloyIssue Monitored: Hieronymous Alloy
2010-12-23 10:10FootkerchiefRelationship replacedrelated to 0000926
2011-03-08 06:06DwarfuRelationship addedhas duplicate 0004162
2011-03-08 06:08DwarfuNote Added: 0015950
2011-03-10 20:16LangdonNote Added: 0016076
2011-03-12 05:46DwarfuRelationship addedparent of 0004200
2011-09-14 18:01FrogwarriorNote Added: 0018726
2011-10-23 01:15DwarfuRelationship addedhas duplicate 0004935
2011-10-23 01:15DwarfuIssue Monitored: Kogut
2011-10-23 01:17DwarfuSummaryMounts disrupt seiger pathing => Invaders/Mounts with [FLYER] tag disrupt seiger pathing
2011-10-23 14:49DwarfuSummaryInvaders/Mounts with [FLYER] tag disrupt seiger pathing => Invaders/Mounts with [FLIER] tag disrupt seiger pathing
2011-10-27 01:31KogutTag Attached: Save Included
2011-10-27 01:32KogutTag Attached: Flying
2012-02-28 18:18FootkerchiefRelationship replacedhas duplicate 0003832
2012-02-28 18:18FootkerchiefRelationship addedhas duplicate 0005505
2012-02-28 18:20FootkerchiefSummaryInvaders/Mounts with [FLIER] tag disrupt seiger pathing => Invader/sieger mounts flee combat, preventing their riders from fighting
2012-02-28 18:20FootkerchiefSummaryInvader/sieger mounts flee combat, preventing their riders from fighting => Invader/sieger mounts flee combat, preventing their riders from fighting (worse with [FLIER] tag)
2012-03-24 08:33BuglistIssue Monitored: Buglist
2016-12-29 13:05AlBravoNote Added: 0036113
2016-12-29 17:00LociNote Added: 0036114

2010-10-09 17:51   
My current fortress's first siege consisted of a single squad of goblin hammermen led by a goblin swordsman riding a giant bat. The leader flew around a bit and is now hovering in the air outside my fortress, and the rest of the squad is gradually spreading out due to being unable to follow their leader.
2011-03-08 06:08   
AbuDhabi posted this save with goblins on flying mounts from 0004162: http://dffd.wimbli.com/file.php?id=3928 [^]
2011-03-10 20:16   
I was lucky to gen a world in .21 where my fort's dwarf civ is at war with the elves, and in my second elven attack I see an Elite Bowelf riding a camel. One of my marksdwarves goes down with an arrow in the leg, but the bowelf is unable to finish him off from close range, as the camel keeps fleeing from the dwarf (as it's not a war camel). The camel flees a short distance, the elf gets it under control and charges the unconscious dwarf, then the camel sees the dwarf and flees yet again.

This went on until I was able to get a melee squad onto the scene, whereupon the camel flees from them and into the arms of the caravan guards.

tl;dr: this bug (mount pathing overrides rider commands) is still present in 31.21.
2011-09-14 18:01   
I find this especially annoying when the enemies come mounted on less aggressive animals, like horses. In that case, the mounts will FLEE when they see any of your dwarves. It's kind of sad to see an entire siege of melee troops flee before your peasants.

It is a bit nasty when the elves do it, of course. HIT AND RUN BITCH!
2016-12-29 13:05   
Still happening as of 42.06. I have a nearby tower. Undead siege appears with wren men and women invaders. Wren men and women hover 1 Z level above undead at edge of map and nobody moves even though open path into fortress. See save file at: http://dffd.bay12games.com/file.php?id=12628 [^]
2016-12-29 17:00   
@AlBravo: Wren people are not mounts; flier pathing problems are 0002286.