Bugs in NetHack 3.6.0

This article is about software bugs. For the monster, see grid bug.

A bug is a problem in NetHack's source code. There are two lists of bugs for vanilla 3.6.0 provided by the DevTeam: one for nonspoiler bugs and one for spoiler bugs.

The variants keep track of their bugs at Bugs_in_NetHack_4, User:Bulwersator/UnNetHackPlus_bug_tracking and apparently User:SGrunt/GruntHack_vanilla_bug_tracking.

Reporting bugs

Report bugs in vanilla NetHack directly to the DevTeam, either by emailing them, or using their contact form. Please also add them to the section Bugs not mentioned on the DevTeam's website below and consider adding your bug report to the list of bug reports, since the DevTeam's bug descriptions often are too vague to be helpful.

Status table

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"The colors for Open and Fixed used here are difficult to distinguish for some color-blind users."

Status	Description
Open	The bug is unresolved, but the DevTeam knows what they need to do about it.
Not a bug	Sometimes people think this is a bug, but they're wrong.
fixed	The bug will be fixed in the next bug-fix release.
Fixed	The bug will be fixed in a future release.
Help	The DevTeam does not know what is causing this and would appreciate related bug reports.
Superseded	See another entry for information on this bug.

Core bugs

Last updated: 2015-12-22

Name	Status	Patch	Description	Additional info
C342-31	Open		You can get a message telling you a monster wields a weapon it already was wielding.
C343-20	fixed		When dying immediately on entering a level, the map may show you dying on the previous level.	This doesn't matter - mostly.
C343-21	Open		Pets can be pulled through closed doors with a leash.
C343-23	Open		Dungeon collapses after vault guard fails to lead you out.	Instructions to reproduce bug
C343-38	Open		Dismounting and kicking a monster that jumps may result in landing on the wrong side of a wall.	Kicking a monster makes them mnexto() you, then tries to flavour the resulting movement. In very confined spaces, mnexto() may not be able to find a space next to you after all. This applies to many monsters with speed >= 12 with a chance of 1/3 or 1/4 depending on how well you kicked, and the bug occurs whether it’s flavoured as “jumps” or “slides” or “floats” or whatever. (A subsidiary bug here: it can also be flavoured as “teleports”, yet trigger on a no-tele level.)
C343-331	Open		Sleeping monster reacts to a mirror.
C343-370	Open		Travel (_) command can get stuck trying to plot a path past an interesting dungeon feature, for example, a trap or fountain.	Possibly related bug
C360-4	fixed		Backtick command causes errors in some ports (and not in others).
C360-5	fixed		Cursed scroll of genocide can behave inconsistently.
C360-6	fixed		Plural grammar error in message for undead turning.
C360-7	Not a Bug		Dark grey objects on black can't be displayed by some terminals (we know this applies to Mac OS X's Terminal) so they seem like they are not there.	Workaround: set OPTIONS=!use_darkgray to use dark blue instead.
C360-8	fixed		Setting "NAME:player" in nethackrc (or equivalent) causes a crash at startup.
360-9	fixed		Eyes of the Overworld messages may contain unintended information.
360-10	fixed		Shape-shifted vampires interact incorrectly with genocide.
360-11	Open		If the user's config file cannot be read, the system config file is read for a second time resulting in warning messages before the game starts.
360-12	fixed		Uncursed scroll of enchant armor fails to uncurse the armor being enchanted.
360-13	fixed		Plural of "slice of cake" is wrong.
360-14	fixed		Named scroll's name not always used when it should be.
360-15	fixed		Reading a dull spellbook can make a sleep resistant hero fall asleep.
360-16	fixed		There are typos in passage 1 of the tribute for "The Colour of Magic."
360-17	fixed		Eating ring of protection doesn't always work properly.
360-18	fixed		Wand explosion does not handle deafness correctly.
360-19	fixed	DevTeam	xlog's realtime field is not accurate.
360-20	fixed		Player can hear pets while deaf.
360-21	fixed		Discovering an invisible corpse with a stethoscope may not make the corpse known.
360-22	Open		If a stethoscope finds an unseen monster on a square with an object-detected object while blind, after killing the monster, the object isn't remembered.
360-23	fixed		Reading a scroll while blind violates illiterate conduct.
360-24	fixed		Sceptre of Might database entry is inaccurate.
360-25	fixed		Dying while helpless (which can be any of several different things) with a high enough score to be added to the record file corrupts the record file.

Spoiler core bugs

Name	Status	Patch	Description	Additional info
SC360-1	Open		While blind and levitating, too much information may be presented.	Does this refer to messages about monsters scared by an Elbereth engraving? Or typing > to identify the stairs? Or to the ability to identify ground types (ice, floor, altar, grave, etc.) when hovering over them?
SC360-2	fixed		Castle chest could be trapped.
SC360-3	fixed		Lava doesn't destroy all boots it should.	Only water walking boots are destroyed by stepping in lava (if not fireproof). All other flamable boots survive.
SC360-4	fixed		Doppelgangers posing as Riders never transform.
SC360-5	fixed		Polymorphing from a fast form to a slower one, the new form may get extra moves it shouldn't.

Windows-only bugs

Name	Status	Patch	Description	Additional info
W360-1	fixed	DevTeam	Help->About crashes the game. (So don't do that.)
W360-2	fixed		When quitting the game, at the "Hit to end." prompt, closing the window rather than pressing Enter causes a crash.	Annoying, but does not affect the game.
W360-3	fixed		"nethack -s" leads to "-s is not supported for the Graphical Interface"

Build-from-source bugs

Name	Status	Patch	Description	Additional Info
S360-1	fixed		Typo: Makefile.top uses pilemark.xpm as a dependency but this file is really called pilemark.xbm. (X11 only)
S360-2	fixed	Ray Chason	The file qt_xpms.h is corrupt.	The top of include/qt_xpms.h is missing; the Qt interface will not build without it
S360-3	fixed	[1]	win/share/tile2bmp.c produces bad bitmaps with 64 bit GCC

Bugs not mentioned on the DevTeam's website

Dev Contact#	Description	Status	Additional info
#H4302	#name fails on long discoveries list	fixed in next version (per Devs)	If there is more than 1 page of discoveries, you can't select a discovery from subsequent pages. Workaround: use ">" instead of space to move to next page

This page may need to be updated for the current version of NetHack.

It may contain text specific to NetHack 3.6.0. Information on this page may be out of date.

Editors: After reviewing this page and making necessary edits, please change the {{nethack-360}} tag to the current version's tag or {{noversion}} as appropriate.