Questions tagged [bug]
Indicates you've found an erroneous or unexpected behaviour in the system that needs to be fixed.
202
questions
3
votes
0
answers
62
views
Editor is not rendering the equations correctly
I haven't asked a question on Mathoverflow or Mathstackexchange but after while I decided to do so I have realized that the editor has got significantly worse. First of all it is significantly slower ...
- 5,719
5
votes
1
answer
100
views
Account merging
I have an issue with account merging form in the help center. The 'Your other profile link' does not accept any link to the second my account.
Picture 1: Completed help form
Picture 2: Outcome of ...
2
votes
1
answer
106
views
Why would an equation render on preview and in an external TeX compiler, but not in post?
I know the general phenomenon is that rendering of previews differs from rendering of posts, but, presumably, the goal is to minimise unnecessary discrepancies—and that, in particular, non-esoteric ...
- 10.3k
3
votes
1
answer
119
views
Why does a table work on preview but not on post?
In waterstreamer's recent post, they used a table to present the possible Jordan normal forms of a $3\times3$ matrix. As they comment, and I checked, the table looks just fine on preview, but ...
- 10.3k
5
votes
2
answers
183
views
Why do `* *`s and `** **`s stop being recognised at some point, and how can I fix the resulting inadvertent vandalism?
I recently submitted an edit to Another notion of exactness: how to refine it, and where does it fit? to replace hand-rolled commutative diagrams with AMScds, since ...
- 10.3k
6
votes
1
answer
136
views
Having the MO Mathjax parser recognise \( \) is a regex away
@IsabelBeckenbach discovered why \( \) isn't accepted as a math-mode delimiter on MO. I'd always thought it was a design choice, but apparently it's just a mis-...
- 10.3k
5
votes
1
answer
157
views
My gravatar has changed
My automatically generated Gravatar has changed. Is that normal? I thought they were supposed to be permanent. I used to have a purple pattern IIRC, now it is light blue, a color I have never seen. It ...
- 18.9k
2
votes
0
answers
88
views
Some arrows in commutative diagrams in comments are wrongly interpreted as @-notifications; and a bonus question about CDs on MMO
I left the following comment on Pullbacks in this category of vector spaces are intersections:
Are the morphisms in your category isometries? Otherwise, I'm not sure why the category is left ...
- 10.3k
6
votes
0
answers
74
views
The citation helper picks up a backlink to an MO answer when a DOI link is unavailable
In the citation helper, I searched for "Lectures on the approach to Iwasawa theory for Hasse-Weil L-functions via BdR". The unique result that shows up is the following (I've only edited two ...
- 956
2
votes
0
answers
143
views
mathcal notation fails to render in Chrome
I recently noticed that "\mathcal" no longer renders. Example post
but it renders fine in Safari
Chrome: 111.0.5563.146 (Official Build) (x86_64)
Safari: Version 16.4 (18615.1.26.11.22)
...
- 2,270
3
votes
2
answers
88
views
Can’t vote to close question as duplicate of question without an answer
I tried to vote to close Einstein problem; on mirror symmemtry as a duplicate of Aperiodic monotile without reflections?. But the software gave me an error I wasn’t expecting: it said because the ...
- 21.3k
-4
votes
2
answers
312
views
Is there a penalty for merely looking at a question, comments and an answer?
Recently I have lost 2 reputation points for merely looking at a question, comments and an answer (1 point for reading the question "Large cardinals in $ZF$ + $DC$ + $AD$, and 1 point for reading ...
- 5,944
5
votes
1
answer
107
views
Why is the wrong username showing up on a CW answer after a user changes names?
An answer to Interesting examples of vacuous / void entities was written, and only edited by, @JonasLinssen:
However, the answer shows up as having been written by @PrudiiArca:
The text "...
- 10.3k
3
votes
0
answers
57
views
Cannot "Mark all as read" under very specific circumstances
This might deserve to be closed; it seems to be a bug, but a very, very minor one. The conditions under which I observed it were rather specific. I'm not sure which of the conditions were important, ...
- 10.3k
4
votes
0
answers
67
views
MathJax in edited question title gets badly mis-parsed in diff view
A recent question received an edit to its MathJax, including in the title. Viewing the diff in the edit history, the edited MathJax in the title gets very badly mis-parsed in the diff view, as shown ...
- 18.5k
24
votes
2
answers
827
views
Kitty can’t fix it — Old questions inaccessible for logged-in users, giving “unexpected error”
For the past few days, any attempt to access the question Collecting proofs that finite multiplicative subgroups of fields are cyclic results in an internal server error:
It seems the poor kitten ...
- 42.6k
3
votes
0
answers
119
views
In Safari on macOS, a numbered list beginning with a displayed equation swallows the number
This bug report did not originally mention the platform and the renderer. I originally put them at the end, but it occurs to me that they're more useful up front. Thanks to @DavidRoberts and @...
- 10.3k
3
votes
0
answers
66
views
AMScd columns not aligning
The code
\require{AMScd}\begin{CD}
0 @>>> \mathbf D(C) \\
0 @>>> M
\end{CD}
produces
$$\require{AMScd}\begin{CD}
0 @>>> \mathbf D(C) \\
...
- 10.3k
3
votes
1
answer
140
views
Spoiler mechanism not working
In a recent answer I've tried to hide some text. Unfortunately, something seems broken.
Here's the not-so-hidden text:
! Let $X$ be the set of complete theories that satisfy "everything
is ...
- 18.2k
4
votes
1
answer
143
views
Double overline renders poorly, except in MathML
A post Mathematical formulation of beam: get stress/strain from forces and momentum uses \overline{\overline{…}}. The results below are mostly from Safari 16.1 on ...
- 10.3k
3
votes
1
answer
94
views
Integral sign cut off in Safari
I am using Safari version 16.1 with the HTML-CSS renderer. A displayed formula in the post Convergence by parameter involving inf renders as follows:
This happens even with extensions disabled, but ...
- 10.3k
4
votes
1
answer
86
views
Occasional "echoed" usernames in Firefox
I noticed about a month ago that quite often in the latest version of Firefox (but not in Chrome) under Windows 11 usernames become distorted like this
Does anybody else see this or it is just me?
...
- 17.2k
12
votes
0
answers
788
views
Did mathcal stop working properly?
Does this question Basic algebra of $\mathcal{O}_0(\mathfrak{sl}_n(\mathbb{C}))$ — Reference request look like this for anyone else?:
Those squares are supposed to be \mathcal{O}'s. As far as I can ...
- 21.3k
2
votes
0
answers
137
views
Facebook and Twitter links disappear ungracefully
I am using Safari 16.1 on macOS 12.6. The invitation to "Share a link to this question" appears for me like this:
I assume that the Twitter and Facebook links are not showing because of ...
- 10.3k
-6
votes
1
answer
291
views
Where did the reputation go?
Some time ago, it was decided that reputation should no longer be displayed by default, but users had the possibility to opt in to see it, as explained by Ben Webster. I had opted to see reputation, ...
- 5,075
3
votes
1
answer
95
views
Edit history lost on migration
According to a comment, @Marco's answer to Notation about n choose k permutations was edited before migration. However, nothing displays in the edit history. (This seems appropriate to ask here since ...
- 10.3k
3
votes
0
answers
147
views
Weird site URLs
If I go to MathOverflow from another SE site by clicking on the link in “Your Communities” under the right-most menu on the top-bar, I do not end up with the usual ...
- 42.6k
1
vote
1
answer
81
views
Long post fails to render
In one MathOverflow answer by me, the MathJax code added latest fails to render correctly. Instead, one $ tag is ignored and for the rest on the line, code inside <...
- 781
3
votes
1
answer
111
views
Why is there unexpected space at the beginning of a paragraph in an answer?
In @GabeK's nice answer to @JonBannon's question Each mathematician has only a few tricks, there is unexpected space at the beginning of the third paragraph:
My first thought was that there might be ...
- 10.3k
1
vote
1
answer
93
views
Icons for MO/metaMO in community list changed?
I notice that in the community list under the SE hamburger in the top right, the icons for MO and for meta have changed:
clearly having the MO logo attached to meta.math.SE is an issue, but we are ...
- 32.9k
4
votes
0
answers
76
views
Limits on overflowed integrals are too far away from the integral sign
I edited Multiplying divergent integrals using Hardy fields approach to put equations clearly meant to be displayed in display mode. Once I did so, one of the equations exhibited very strange spacing,...
- 10.3k
7
votes
1
answer
201
views
Reputation number not visible on main page
This is a very minor bug, but the reputation number seems not to be visible on the main site:
Interestingly, it is visible in meta:
- 18.2k
7
votes
0
answers
175
views
Diamond moderator symbols and old posts
This question, or rather, (vague) feature-request is not specific to MO; however I leave it to more experienced (and with better skill in writing English) users to possibly ask it elsewhere.
...
- 57.8k
2
votes
1
answer
52
views
Link not being processed
At What kind of topological invariants can you get from just Hopf algebras?, link [4] is not being processed:
However, it is there in the source:
...
- 10.3k
5
votes
1
answer
234
views
Long display style formulae extend too much to the right with some renderers
In the following screen capture, take a look at the region delimited by the red rectangle: notice how it extends too much to the right, such that a part of it becomes hidden by the yellow page element....
- 5,075
8
votes
0
answers
116
views
Some but not all LaTeX rendering correctly on tools page
Users with sufficiently high reputation have access to a "tools" page, which I like a lot. However, sometimes I find that the $\rm\TeX$ doesn't render properly. What is particularly puzzling ...
- 75.9k
2
votes
0
answers
62
views
Badges appear to have disappeared [duplicate]
It looks like badges are no longer showing on users when browsing questions/answers:
The badges appear while the pages loads, but as soon as the mathjax fully loads, they disappear. Checking other SE ...
4
votes
0
answers
68
views
Occasionally reproducible bug with macro definitions in a draft post affecting macro use in comments
In the course of a discussion involving using MathJax to re-define macros, I couldn't recall if MathJax obeys a \newcommand for an already-defined macro, and so ...
- 10.3k
24
votes
4
answers
802
views
What is the deal with changes to the front page?
It appears that today Stack Exchange has changed the appearance of the MathOverflow front page. It now looks more similar to Stack Overflow. The most noticeable change is that the counts of answers, ...
Tim CampionMod
- 56.7k
6
votes
1
answer
164
views
Reputation displays after an edit even if opted out
I mentioned this in a comment on the main announcement regarding not automatically displaying reputation, but perhaps it is worth making into a formal bug report.
After I edit a post, reputation is ...
- 10.3k
35
votes
2
answers
1k
views
Reputation and badges are no longer visible next to the users' names
Right now it seems that a bug is affecting MO: reputation and badges are no longer displayed next to the users' names.
This happens both on the front page:
as well as on pages of individual questions:...
- 5,075
11
votes
0
answers
97
views
On a MathOverflow post, the members' reputation for a question & answer shows briefly but then disappears [duplicate]
When I was just viewing the MathOverflow Improving Cauchy estimates?, this is what I see for the question & answer members' "flair" sections:
Doing a refresh causes the reputations to ...
- 564
3
votes
0
answers
137
views
Braces are not rendered in MathJax in the preview of a question
I am using Firefox 94.0.1, with no user scripts. I have a few add-ons, which I can list if needed, but, since the behaviour does not always occur, they cannot always be interfering. My renderer is <...
- 10.3k
1
vote
1
answer
209
views
Why I am not allowed to answer protected questions?
I'm a new user of MathOverflow. In the privileges section, it says that I can now answer protected question.
But in reality, when I visited this protected question, it says:
I'm not counting the ...
user178111
4
votes
1
answer
326
views
Why was this math puzzle question migrated to Science Fiction & Fantasy?
There was a recent question on MathOverflow which was just incorrectly migrated to Science Fiction & Fantasy (where it has been promptly deleted). I suspect the reason the question was migrated ...
- 30.3k
11
votes
0
answers
195
views
Watched tags highlighting lost
On both Chrome Version 91.0.4472.77 and Safari Version 14.1.1 running on MacOS 10.15.7, I've lost the color-highlighting of front-page Top Questions in my Watched Tags list. Is this just my problem, ...
- 148k
3
votes
0
answers
60
views
Math-mode formula in comment breaks incorrectly across lines
In the following comment, both summands should appear before the period:
The source for the comment is:
...
- 10.3k
5
votes
0
answers
96
views
Can't submit edit review
I was prompted to review some edits with the little dot in the upper right hand corner, but when I went to do my editorial duty I found that only the 'skip' button was clickable:
I tried selecting ...
- 8,768
8
votes
2
answers
177
views
Previewed post does not match rendered post when MathJax uses *
In revision 2 of Number of permutations in $S_{a + b}$ with $\operatorname{maj}(\pi) = b$ and $\operatorname{maj}(\pi^{-1}) = b$, I edited an equation that had been manually given the label ...
- 10.3k
4
votes
0
answers
113
views
Is anybody else not seeing comments on their iPhone?
Starting last night I can no longer see comments when using the site on my iPhone, nor can I comment. Things are fine on my iPad just not my iPhone. I am wondering if anybody else has ever had this ...
- 36.6k