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IDProjectCategoryView StatusDate SubmittedLast Update
0006551Dwarf FortressDwarf Mode -- Buildings, Generalpublic2014-07-07 20:442015-06-19 12:37
Assigned Tolethosor 
PlatformOSOS Version
Product Version0.40.01 
Target VersionFixed in Version 
Summary0006551: Constructing on trees causes them to vanish
DescriptionBuilding a construction (such as a floor, or a wall) on any tree tile causes the entire tree to simply vanish. No logs are generated, and the tree leaves behind sand tiles where it once stood. Any constructions supported by the tree will then collapse.

I couldn't find a tree with an available thick branch tile to test upon, but floors will destroy trees when built on their twig tiles, branch tiles, and the triangular "top" tiles.
Attached Files

- Relationships
related to 0008719resolvedToady One Building constructions over parts of trees crashes 
has duplicate 0007855resolvedKnight Otu Building on tree canopy, causes it to vanish 
related to 0006530confirmedFootkerchief Dwarves won't build stairs in trees (specifically leaves/twigs) 
related to 0006948new Trees supporting adjacent constructions is inconsistent 
related to 0008469confirmedLoci Cutting down trees leaves a hole in the floor (if empty layer underneath) 

-  Notes
JoeJoe (reporter)
2014-07-08 04:33

The exact same thing happens when any root tile is mined out.
krenshala (reporter)
2014-07-08 19:38
edited on: 2014-07-18 15:11

Any walls beneath the tree that vanishes lack a floor, and are shown as open space instead of a floor on the level above where they are constructed.

edit: looks like this aspect was fixed according to Toady's post for the 17th.

splitcorez (reporter)
2014-07-10 22:01

Bridges overlapping trees won't destroy the trees as they don't "replace" twigs or branches.
lando242 (reporter)
2014-07-21 05:25

Nope, not fixed. I still lose the floor when the tree disappears. This was tested on a save from .03 though.
nonfish (reporter)
2014-11-04 21:38

This bug is still present in .40.14, although the behavior is no longer observed when root tiles are mined out
Afghani84 (reporter)
2015-03-29 19:24

I just had a tree just vanish in 40.24 (latest LNP with Phoebus graphics) while checking a bug report here: 0008884

Strangely, Detros and the initial poster had DF crash which would point towards 0008719. Just curious whether other people can reproduce what I saw for this save.
Detros (manager)
2015-03-30 02:38

Just to sum it up, according to 0008719 it seems building in trees causes crashes for lots of people with version 0.40.24 while for versions 0.40.0 to 0.40.23 it seems to fall in the case reported here where it ends only with a vanishing tree.
lethosor (manager)
2015-06-14 09:36

I'm going to resolve this since it's been replaced by 0008719.

- Issue History
Date Modified Username Field Change
2014-07-07 20:44 Kanil New Issue
2014-07-08 04:33 JoeJoe Note Added: 0024987
2014-07-08 14:32 lethosor Relationship added related to 0006530
2014-07-08 19:38 krenshala Note Added: 0025222
2014-07-08 19:38 krenshala Issue Monitored: krenshala
2014-07-10 22:01 splitcorez Note Added: 0025682
2014-07-10 22:02 splitcorez Issue Monitored: splitcorez
2014-07-18 15:11 krenshala Note Edited: 0025222 View Revisions
2014-07-21 05:25 lando242 Note Added: 0027121
2014-07-22 13:32 lethosor Tag Attached: 0.40.04
2014-07-22 13:32 lethosor Assigned To => lethosor
2014-07-22 13:32 lethosor Status new => acknowledged
2014-07-22 13:33 lethosor Relationship added related to 0006948
2014-08-05 12:15 Knight Otu Relationship added has duplicate 0007855
2014-08-08 16:16 Footkerchief Status acknowledged => confirmed
2014-11-04 21:38 nonfish Note Added: 0030870
2014-11-05 08:39 Footkerchief Relationship added related to 0008469
2015-03-29 19:19 Afghani84 Issue Monitored: Afghani84
2015-03-29 19:24 Afghani84 Note Added: 0032464
2015-03-30 02:38 Detros Note Added: 0032469
2015-06-14 09:35 lethosor Relationship added related to 0008719
2015-06-14 09:36 lethosor Note Added: 0032778
2015-06-14 09:36 lethosor Status confirmed => resolved
2015-06-14 09:36 lethosor Resolution open => suspended
2015-06-19 12:37 krenshala Issue End Monitor: krenshala
2016-01-03 06:12 Afghani84 Issue End Monitor: Afghani84

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