Questions tagged [bug]

Indicates you've found an erroneous or unexpected behaviour in the system that needs to be fixed.

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2 votes
1 answer
54 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 ...
4 votes
1 answer
123 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 ...
  • 9,457
3 votes
1 answer
90 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 ...
  • 9,457
4 votes
1 answer
75 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? ...
6 votes
0 answers
274 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 ...
  • 20.3k
2 votes
0 answers
132 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 ...
  • 9,457
-6 votes
1 answer
258 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, ...
  • 5,005
3 votes
1 answer
90 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 ...
  • 9,457
3 votes
0 answers
143 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 ...
1 vote
1 answer
80 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 <...
3 votes
1 answer
104 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 ...
  • 9,457
1 vote
1 answer
91 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 ...
  • 31.9k
4 votes
0 answers
74 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,...
  • 9,457
2 votes
1 answer
169 views

Mystery popup window

Last week or so, when I get into an SE site (MO in particular), a popup window appears in the lower left corner for few milliseconds. Some kind of clickable button there, with not enough time for me ...
7 votes
1 answer
199 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:
7 votes
0 answers
170 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. ...
  • 54.8k
2 votes
1 answer
50 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: ...
  • 9,457
5 votes
1 answer
204 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....
  • 5,005
8 votes
0 answers
105 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 ...
  • 69.6k
2 votes
0 answers
61 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
66 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 ...
  • 9,457
24 votes
4 answers
792 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, ...
  • 53.6k
6 votes
1 answer
160 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 ...
  • 9,457
32 votes
2 answers
981 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:...
  • 5,005
11 votes
0 answers
93 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 ...
2 votes
0 answers
102 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 <...
  • 9,457
1 vote
1 answer
200 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 ...
user avatar
4 votes
1 answer
324 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 ...
  • 29.2k
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, ...
3 votes
0 answers
55 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: ...
  • 9,457
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 ...
  • 7,697
7 votes
2 answers
158 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 ...
  • 9,457
5 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 ...
4 votes
1 answer
107 views

Why is my feature-request not showing on meta?

I posted my feature request (Feature request: a possibility to leave mathoverflow) yesterday, yet it is not showing on the list of most recent questions. I thought it might be the negative votes but ...
  • 25.2k
3 votes
1 answer
86 views

`\DeclareMathOperator` at the beginning of a comment disables some link parsing

In a comment of the form $\DeclareMathOperator\a{a}$Here's a [link](http://mathoverflow.net) and [another link](http://mathoverflow.net) $\a$, neither link is ...
  • 9,457
6 votes
0 answers
262 views

Platform-wide suspenson but not on MO?

At this closed question the user seems to be playing ignorant, but I looked at their network profile and some of the other StackExchange sites, and there is a prominent banner This account is ...
  • 31.9k
5 votes
0 answers
82 views

Dollar sign in image title works in preview, but not in actual post

I was just trying to clean up Understanding why $\pi_{3}(N) = \mathbb{Z}_{(2n, n^2)}$? , which was originally almost entirely cut-and-pasted images without any alternate text. For the first image, I ...
  • 9,457
2 votes
1 answer
132 views

What is up with the "Question feed" vs. "Related Questions"?

When looking at a question, for at least the past few months I've noticed an inconsistency in what displays in the righthand sidebar. What I expect to see is a list of "related questions" -- ...
  • 53.6k
2 votes
1 answer
68 views

Why does Markdown not always work?

In this post, I selected text and marked it bold with two stars. But it displays for me (both in preview and after posting) like this: Is this related to the move to CommonMark as noted in the post, ...
0 votes
0 answers
85 views

"Voting corrected" seems incomplete

A few days ago, I was surprised to see a sudden increase in rep of 80 points in the space of a couple minutes. When looking over my profile today, I saw that I had lost 60 points, with the annotation &...
  • 4,716
4 votes
1 answer
69 views

Why don't images show up in a post?

Why do the image links in the post Triangle angle bisectors, trisectors, quadrisectors, show up as raw source? (I tried deleting everything but the [1] or ...
  • 9,457
3 votes
1 answer
171 views

My answer got upvoted, but no reputation increase?

My reputation score seems to be stuck at 510 even if some of my answers were up-voted recently. How do I fix this bug? How do I contact the moderators in order to solve (or at least understand) the ...
  • 698
3 votes
0 answers
208 views

Clicking question author username sends to revision history

This happens with Every mathematician has only a few tricks: the link with the author username leads to the revision history. I checked several other questions, including some cw (this one is cw), ...
6 votes
0 answers
295 views

Nominate bountied question for closure

Bountied questions cannot be closed: this prompted this meta-MO question. In the answer to that question, the reasons for this feature are explained (closure would shorten the bounty period, possibly ...
0 votes
0 answers
63 views

Potential rendering issue for formulas

when I entered the following $$\pmb{ \frac{d_+^n}{dx_+^n}}:= \left(1, \frac{d^1}{dx^1},\,\dots,\,\frac{d^{n-2}}{dx^{n-2}},\,1\right)$$ I observed that the defined fraction has an unsharp ...
  • 11.7k
1 vote
1 answer
68 views

Reputation for editing deleted questions disappears into memory hole?

It appears that reputation earned from editing a question that is subsequently deleted is not subtracted in a reputation-decreasing event (e.g. a "-2: edited question was deleted") that shows up in a ...
  • 2,507
2 votes
0 answers
69 views

Duplication of left-side links in review

I'm getting a weird bug when trying to review one question: https://mathoverflow.net/review/first-posts/127819 The left side links (including the MO banner) are duplicating, and the question itself ...
  • 4,716
8 votes
0 answers
183 views

Icon for citation helper

On the main MathOverflow site (and also on math.stackexchange) the icon for the citation helper, which used to look as below, has recently confusingly changed to a "B", identical to the icon at the ...
6 votes
1 answer
121 views

Failure to update changed username on (edited, community wiki) answer

I recently noticed some very bizarre behavior on this old post. The user who asked the question is currently operating under the username "Loop Space". This user seems to have previously operated ...
  • 1,681
6 votes
1 answer
164 views

What happened to the colours?

The colour of hyperlinks on the main site changed today. While basic links remain blue, they turn orange on hover, and a darker orange-brown colour when visited: I can’t imagine this awful colour ...