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IDProjectCategoryView StatusDate SubmittedLast Update
0000895Dwarf FortressDwarf Mode -- Jobs, Huntingpublic2010-04-09 14:532014-08-14 15:33
Assigned ToToady One 
PrioritylowSeverityminorReproducibilityhave not tried
PlatformPCOSWin XPOS VersionSP3
Product Version0.31.01 
Target VersionFixed in Version0.40.09 
Summary0000895: Items disappear (become invisible) after getting pushed by flowing water, burning in magma, or encased in ice
DescriptionItems are still there and can be tracked via stocks menu, dumping them from there works too, makes them reappear. Probably caused by me digging channels next to pool to get water level down and make ramps-->Items moved with flow? Corpse and all was visible at first, now only quiver, bolts, 1 sock are visible. Zooming in from stocks works too but no display on the tile.
Steps To Reproducewell, have a hunter dodge in a pool from an attacker - pretty hard to reproduce
Tagsflow, hunting, owned item, water
Attached Files

- Relationships
has duplicate 0003765resolvedFootkerchief Rushing floodwaters in charnel cavern make bodies & parts disappear, cause weird dwarf idling. 
has duplicate 0004697resolvedFootkerchief Miasma without a source 
has duplicate 0004551resolvedDwarfu Body at bottom of pond dissapears when pond is drained 
has duplicate 0004751resolvedFootkerchief Building and then removing floors seems to be generating dumped stones 
has duplicate 0004774resolvedLogical2u Water flowing over a stack of armor makes most of the armor disappear 
has duplicate 0002132resolvedDwarfu Flowing water destroys stone if more than one is present in its path 
has duplicate 0001487resolvedDwarfu Icing of the river makes objects within the water disappear 
has duplicate 0005614resolvedLogical2u Corpses/creatures in water disappear when water freezes 
has duplicate 0005893resolvedFootkerchief Magma occasionally fails to destroy utterly flammable items, see description and save for list 
related to 0002210resolvedFootkerchief water leaves no mud 
related to 0002884resolvedToady One cancels store owned item: item inaccessible [every 5 seconds] 
related to 0004600resolvedToady One Items frozen in ice are unrecoverable; building on previously iced square crashes game. 

-  Notes
Footkerchief (manager)
2010-04-09 15:01

Yeah, there was an old bug where items that got pushed around by flowing water would become invisible. Guess it's still around.
kaefermelder (reporter)
2010-04-09 15:05

k - added a tag "old bug?". pretty minor anyway
Vastin (reporter)
2010-04-27 22:03

Confirmed. I had a soldier fall into a pool and was trying to make it shallow enough to retrieve his corpse and effects. This activity resulted in some flow and his corpse and several items disappeared.

The items still show up in stock, and if I zoom to them it selects an apparently empty square in the pool where they presumably are.
Footkerchief (manager)
2010-05-06 18:40

Here's the specific old bug:

# 000525 □ [dwarf mode][flows] items that were pushed around by water didn't show up with look command
Quietust (reporter)
2010-10-21 06:27
edited on: 2010-10-21 06:29

I just had this happen with magma - a Goblin siege managed to slaughter a Human caravan while standing inside my magma trap so I turned it on and let them have it; as a result, I now have an invisible glob of melted burning donkey cheese that won't disappear from my stocks screen.

Dwarfu (manager)
2011-03-27 15:49

This also happens to anything that gets encased in ice - you can't 'k' over the items, though the stocks screen still lists them and you can zoom to them.
Dwarfu (manager)
2011-03-27 17:39

See note at 0002884:0011249 for a sock that was lost in magma and is generating spam messages for claiming attempts.
SocietalEclipse (reporter)
2011-03-29 10:51

This happens constantly for me with my magma goblin dumping chamber.

1. Fill chamber with magma
2. Drop in 20+ armed/armored goblins to ensure enough iron items left over. Testing with just a few goblins may or may not reproduce bug.
3. Empty chamber into larger cooling chamber via a door switch. The stack of iron helms and such will scatter into the second chamber with the magma flow.
4. Wait for 1/7 magma to cool & disappear.
5/Result. Seemingly random selection of iron items that are invisible (graphically) but if you unForbid them via stocks screen dwarves will come to drag them away. 'K' over invisible objects *before* dwarf arrives will only show visible items if both visible/invisible occupy the same spot. They reappear (graphically) the moment a dwarf picks them up.
InsanityPrelude (reporter)
2011-04-17 20:20

Still occurs as of 31.25.
foop (reporter)
2011-05-23 13:53

This is happening in my goblinite collection chamber where items are washed off the narrow path of doom by water from a large cistern above.

I've put a save on DFFD (bit big, I'm afraid, it's a mature fort): [^]
ImBocaire (reporter)
2011-07-24 06:10

I posted a bug marked as a duplicate. I'm sure it's the same issue, but I'd like to note that in my particular case, the items disappeared from the stocks menu as well.
flamoot (reporter)
2011-12-20 11:58

Yeah I was trying to pump water away from drowning victims so their corpses could be retrieved, and they disappeared!!
Dwarfu (manager)
2012-02-10 07:33

JasonMel's save from 0001581: [^]

It appears the body and stones, though not hidden have been displaced because of a cave-in and being in water.

See his notes at 0001581:0019462 and 0001581:0019466 and mine at 0001581:0019468.
JasonMel (reporter)
2012-02-10 10:49

Since it turns out that the stones may be relevant too, I should mention that the 1x2 channel the corpse is in didn't have any stones in it at all before the cave-in. They were very probably from the stone stockpile to the west that was "destroyed" by the cave-in.
Mezmeer (reporter)
2012-02-12 22:22

Happened to me, thankfully this has a workaround. I had about 13 dwarves claiming items from my "migrant corpse maker" which was just a walled in area which I flooded when I had the new migrants in there. When it drained, it must have activated this bug. >__>
Footkerchief (manager)
2012-02-19 15:23

hyp3r4ctive posted this save at 0004697: [^]
Leonidas (reporter)
2012-07-17 03:08

This bug is easy to duplicate in the object testing arena. Just have some creatures fight to generate objects, then create some cubes of water nearby. The bug appears consistently in width-one corridors, less consistently in open areas.
epeli (reporter)
2013-04-10 11:16

Still happens in 0.34.11.

I have a fort with various bugged invisible items created by magma/lava and a flash-freezing river.

Bug 0006305 (door permanently stuck open with no visible reason) might also be related, I couldn't find any other possibly related bugs/causes for it.
aztectornado (reporter)
2014-02-03 06:56

One of my forts had a human caravan take a detour into my moat as it was filling, causing the wagon to "die" and drop everything everywhere, 98% of which was invisible once I found out about the incident. It also caused a large drop in FPS due to job cancellation spam from what I can only assume was something that somehow got left on the upward ramp at the edge of the moat, and was thereby accessible, yet inaccessible due to invisibility.

I had to abandon the fort and reclaim it because of this... Apparently it was a pretty big deal though since my engraver made no less than 5 images of the wagon being destroyed.
Vattic (reporter)
2014-02-15 20:47

When items get frozen in ice you can dig them back out, but not melt them back out. At least that's how it worked with a freeze trap I made.
Talvieno (reporter)
2014-07-15 18:12

Can confirm that this still exists in 40.03.
Liens (reporter)
2014-07-17 04:00

@Mezmeer What is the workaround?
Multipartite (reporter)
2014-07-17 05:24

@Liens The workaround mentioned is probably the 'can be tracked via stocks menu, dumping them from there works too, makes them reappear' mentioned in the issue description.

- Issue History
Date Modified Username Field Change
2010-04-09 14:53 kaefermelder New Issue
2010-04-09 15:01 Footkerchief Note Added: 0002433
2010-04-09 15:02 Footkerchief Summary hunter dodged into murky pool, drowned, corpse and some equipment invisible, but not all. Possibly after "water movement" => Hunter's corpse/equipment invisible after drowning in pool, probably after getting pushed by flowing water
2010-04-09 15:04 kaefermelder Tag Attached: old bug?
2010-04-09 15:05 kaefermelder Note Added: 0002435
2010-04-09 15:17 kaefermelder Tag Attached: hunting
2010-04-27 22:03 Vastin Note Added: 0005471
2010-05-06 18:40 Footkerchief Note Added: 0006328
2010-05-06 18:40 Footkerchief Tag Detached: old bug?
2010-06-04 18:39 Footkerchief Summary Hunter's corpse/equipment invisible after drowning in pool, probably after getting pushed by flowing water => Items disappear (become invisible) after getting pushed by flowing water
2010-06-04 18:41 Footkerchief Relationship added related to 0002160
2010-06-04 21:39 Footkerchief Relationship deleted related to 0002160
2010-10-21 06:27 Quietust Note Added: 0013442
2010-10-21 06:29 Quietust Note Edited: 0013442 View Revisions
2010-12-02 07:57 Footkerchief Relationship added has duplicate 0003765
2010-12-28 09:34 Footkerchief Relationship added related to 0002210
2011-03-27 15:49 Dwarfu Note Added: 0016688
2011-03-27 15:50 Dwarfu Summary Items disappear (become invisible) after getting pushed by flowing water => Items disappear (become invisible) after getting pushed by flowing water, burning in magma, or encased in ice
2011-03-27 17:38 Dwarfu Relationship added related to 0002884
2011-03-27 17:39 Dwarfu Note Added: 0016691
2011-03-29 10:51 SocietalEclipse Note Added: 0016766
2011-04-17 20:20 InsanityPrelude Note Added: 0017420
2011-05-23 13:53 foop Note Added: 0017833
2011-06-12 23:39 Dwarfu Relationship added related to 0004697
2011-06-28 14:10 Dwarfu Relationship added parent of 0004600
2011-06-28 14:45 Dwarfu Relationship added has duplicate 0004551
2011-07-13 10:26 Dwarfu Relationship added parent of 0004751
2011-07-13 10:33 Dwarfu Sticky Issue No => Yes
2011-07-22 14:16 Naros Tag Attached: water
2011-07-22 14:16 Naros Tag Attached: flow
2011-07-22 15:34 Logical2u Relationship added has duplicate 0004774
2011-07-24 06:10 ImBocaire Note Added: 0018303
2011-07-27 07:13 Dwarfu Relationship added has duplicate 0002132
2011-07-27 07:13 Dwarfu Issue Monitored: malroth
2011-07-31 05:19 Dwarfu Relationship added has duplicate 0001487
2011-12-20 11:58 flamoot Note Added: 0019211
2012-02-10 07:33 Dwarfu Note Added: 0019474
2012-02-10 10:44 JasonMel Issue Monitored: JasonMel
2012-02-10 10:49 JasonMel Note Added: 0019476
2012-02-12 22:22 Mezmeer Note Added: 0019487
2012-02-12 22:23 Mezmeer Tag Attached: owned item
2012-02-19 15:23 Footkerchief Note Added: 0020174
2012-02-19 15:24 Footkerchief Relationship replaced has duplicate 0004697
2012-03-11 07:13 Logical2u Relationship added has duplicate 0005614
2012-05-16 07:23 Footkerchief Relationship added related to 0005893
2012-07-17 03:08 Leonidas Note Added: 0023251
2013-04-10 11:16 epeli Note Added: 0023929
2014-01-26 10:22 Footkerchief Relationship replaced has duplicate 0005893
2014-02-03 06:56 aztectornado Note Added: 0024491
2014-02-15 20:47 Vattic Note Added: 0024518
2014-02-19 06:53 Footkerchief Assigned To => Footkerchief
2014-02-19 06:53 Footkerchief Status new => acknowledged
2014-07-15 18:12 Talvieno Note Added: 0026564
2014-07-17 04:00 Liens Note Added: 0026730
2014-07-17 05:24 Multipartite Note Added: 0026735
2014-07-27 10:36 Kanddak Issue Monitored: Kanddak
2014-08-13 13:29 Footkerchief Status acknowledged => confirmed
2014-08-14 12:27 Toady One Relationship replaced related to 0004751
2014-08-14 12:27 Toady One Relationship replaced related to 0004600
2014-08-14 12:28 Toady One Status confirmed => resolved
2014-08-14 12:28 Toady One Fixed in Version => Next Version
2014-08-14 12:28 Toady One Resolution open => fixed
2014-08-14 12:28 Toady One Assigned To Footkerchief => Toady One
2014-08-14 12:39 Footkerchief Sticky Issue Yes => No
2014-08-14 15:33 Kanddak Issue End Monitor: Kanddak
2014-12-30 20:32 Footkerchief Relationship replaced has duplicate 0004751
2014-12-30 20:32 Footkerchief Issue Monitored: Farmerbob

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