0007211: Removal of constructed wall created unusable black tile

Dwarf Fortress Bug Tracker - Dwarf Fortress

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Project

Category

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Date Submitted

Last Update

0007211

Dwarf Fortress

Dwarf Mode -- Buildings, General

public

2014-07-13 08:42

2014-07-13 09:13

Reporter

eliotcougar

Assigned To

Footkerchief

Priority

normal

Severity

minor

Reproducibility

always

Status

resolved

Resolution

duplicate

Platform

OS Version

Product Version

0.40.02

Target Version

Fixed in Version

Summary

0007211: Removal of constructed wall created unusable black tile

Description

I've dug out a frozen river and build two (2 block high) walls in it... The next winter I decided to place bars in them and removed 1 block from both walls...
One wall worked fine, and I was able to build vertical bars there, but another one got strange empty tile where the wall has been... Loo"k" shows there's nothing there, and I can't build anything on that tile...

Steps To Reproduce

Load save
Wait a little until water is frozen
Deconstruct the second bottom block from the left (see the screenshot)
Remove upward ramp (it was called Unusable glacial ramp)
Black square appears, you can't build anything there

Additional Information

Save here: http://217.26.18.6/region2-win-251.7z [^] (It's my 24/7 server at home)

Screenshot: http://217.26.18.6/strange-tile.png [^]