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IDProjectCategoryView StatusDate SubmittedLast Update
0008400Dwarf FortressDwarf Mode -- Jobs, Generalpublic2014-10-04 07:152024-03-28 19:14
Assigned ToLoci 
PrioritynormalSeverityminorReproducibilityhave not tried
PlatformPCOSWindowsOS Version7
Product Version0.40.13 
Target VersionFixed in Version 
Summary0008400: Removing natural upwards ramps from icy brook floor produced empty tiles
DescriptionI was digging out the ice from a section of a frozen river (actually, one deeper than original river). Channeling, removing ramps, etc. Two tiles where generated that have no description but are counted as 'inside'. The tile one z-level up from them is 'outside' and open space.
Steps To ReproduceLoad save file. Look at floor of river near left side of map.
Additional InformationSave file to follow.
TagsNo tags attached.
Attached Files

- Relationships
has duplicate 0010197resolvedLoci Building a construction over the river floor, then deconstructing it, causes the river floor to disappear. 
has duplicate 0009715resolvedLoci Removing "unusable glacial upward slopes" leaves permanently unpassable, undiggable tiles 
has duplicate 0010746resolvedLoci Attempting to remove river tiles during winter via ramps can result in "empty" tiles which cannot be built on or moved through. 
child of 0001981acknowledgedLoci Constructing wall/floor over ice ramp/stairs, followed by removing ramp/stairs, creates a "void tile" 

-  Notes
ptb_ptb (reporter)
2014-10-04 07:27

Save file [^]
FallenAngel (reporter)
2014-10-04 08:57

I've seen this at least once before. I think.
Dunno where, but this sounds eerily familiar, from 0.34.11.
Might've been during my turn at Demongate.
Either way, you're not the only one.
Going to monitor this.
Rafal99 (reporter)
2014-10-04 11:09
edited on: 2014-10-04 11:10

This sounds quite like 0001981.

ptb_ptb (reporter)
2014-10-04 11:16

Better save. [^]

The ramps are marked to be removed. As soon as you unpause the save a dwarf or two will run over there and uncover the mystery holes.
ptb_ptb (reporter)
2014-10-04 11:19


You're right, it does. I don't think any construction was involved in the recent past in this one. Possibly before water froze to make the ice that I turned into ramps then removed.
ptb_ptb (reporter)
2014-12-01 03:16

This still occurs in DF 0.40.19
Loci (manager)
2019-03-09 08:11

v0.44.09: fishsicles provided a save and scenario in 0010746: [^]

"I believe the bugged tiles result from ramps which formed through this process:

1.) During a previous winter, build a constructed floor over an ice tile.
2.) Remove this floor. This results in a permanent ice tile rather than the soil tile, I don't know if this is intended.
3.) Let water return to this tile and flow over it, freezing into an ice wall the next winter.
4.) Dig a ramp into the ice wall.
5.) Remove the ramp.

This produces the "empty" tile. The ramps which are eligible to reproduce the bug immediately in the save are on the left side of the excavated riverbed."
catagris (reporter)
2024-03-28 19:14

This is still an issue with 50.11 Steam version.

- Issue History
Date Modified Username Field Change
2014-10-04 07:15 ptb_ptb New Issue
2014-10-04 07:27 ptb_ptb Note Added: 0030525
2014-10-04 08:57 FallenAngel Note Added: 0030528
2014-10-04 08:57 FallenAngel Issue Monitored: FallenAngel
2014-10-04 11:09 Rafal99 Note Added: 0030530
2014-10-04 11:10 Rafal99 Note Edited: 0030530 View Revisions
2014-10-04 11:16 ptb_ptb Note Added: 0030531
2014-10-04 11:19 ptb_ptb Note Added: 0030532
2014-12-01 03:16 ptb_ptb Note Added: 0031234
2019-03-09 08:03 Loci Relationship added child of 0001981
2019-03-09 08:05 Loci Relationship added has duplicate 0010197
2019-03-09 08:05 Loci Issue Monitored: Huntthetroll
2019-03-09 08:05 Loci Assigned To => Loci
2019-03-09 08:05 Loci Status new => acknowledged
2019-03-09 08:07 Loci Relationship added has duplicate 0009715
2019-03-09 08:08 Loci Relationship added has duplicate 0010746
2019-03-09 08:11 Loci Note Added: 0039276
2024-03-28 19:14 catagris Note Added: 0041381
2024-03-28 19:15 catagris Issue Monitored: catagris

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