Dwarf Fortress Bug Tracker - Dwarf Fortress
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0007694Dwarf FortressDwarf Mode -- Itemspublic2014-07-28 12:282014-08-24 20:36
Loci 
Toady One 
normaltweakalways
resolvedfixed 
0.40.05 
0.40.06 
0007694: Bone stacks "morph" when bones used individually for crossbows, some bones "lost"
When a bowyer processes a stack of bones into crossbows, large stacks eventually "morph" into a specific type of bone, and some bones disappear. For example, I had a stack of 20 Water Buffalo Cow bones. I ordered 20 bone crossbows. After creating 15 of them, a single stack of 2 Water Buffalo Cow right front leg bones remained. Three of the bones were apparently "lost" at some point.

Larger initial stacks tend to exhibit larger losses--one fortress in v0.34 had a stack of roughly 50 elephant bones only produce around 20 crossbows.
acquire a large stack of bones
order bone crossbows from stack
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Issue History
2014-07-28 12:28LociNew Issue
2014-08-24 12:40LociNote Added: 0029586
2014-08-24 20:36FootkerchiefNote Added: 0029594
2014-08-24 20:36FootkerchiefStatusnew => resolved
2014-08-24 20:36FootkerchiefFixed in Version => 0.40.06
2014-08-24 20:36FootkerchiefResolutionopen => fixed
2014-08-24 20:36FootkerchiefAssigned To => Toady One

Notes
(0029586)
Loci   
2014-08-24 12:40   
It appears that this issue was fixed by the stack-consumption changes in v0.40.06.
(0029594)
Footkerchief   
2014-08-24 20:36   
Thanks!