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

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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:...
Alex M.'s user avatar
  • 5,357
30 votes
1 answer
424 views

Text on some buttons has become unrecognizable

Very recently (I think today) the buttons with "Post your answer", "Answer your question" and some others became black, with the text hardly readable. With me it happens on Windows 10 with latest ...
მამუკა ჯიბლაძე's user avatar
26 votes
7 answers
3k views

Should we have new moderator elections?

Mathoverflow has seven moderators, but many of them seem to be inactive (at least from the point of view of an unprivileged user): for instance, they are not active on meta, and they moderated few ...
Federico Poloni's user avatar
26 votes
0 answers
612 views

The color of links in comments

In the following image, depicting a piece of a comment on MO.se the words «this link» are a link to some URL, yet the styling makes it quite not apparent; the only styling I can see is a ...
Mariano Suárez-Álvarez's user avatar
24 votes
2 answers
853 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 ...
Emil Jeřábek's user avatar
24 votes
4 answers
818 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 Campion's user avatar
  • 62.6k
23 votes
1 answer
729 views

Tea archive (mathoverflow.tqft.net) seems to be down

It seems that the link http://mathoverflow.tqft.net/ (which, according to this announcement, serves as an archive of the old tea, i.e. the previous incarnation of MathOverflow Meta) no longer works. ...
Martin Sleziak's user avatar
22 votes
1 answer
711 views

Why are we now getting 'hot network questions'?

I notice that we are now getting a bar listing hot questions from across the SE network. I thought we'd settled for no cross-site advertising in MO2.0.
David Roberts's user avatar
  • 34.8k
20 votes
1 answer
809 views

The math! It's overflowing!

See what happens if you expand the comments on this question, we get this prime example of a math overflow: Of course, this is due to a \$ problem, but still, it seems to be a flaw in the CSS that ...
Manishearth's user avatar
20 votes
0 answers
227 views

Visited / unvisited links in the questions / answers

I just posted a question and I noticed that unvisited links use a color that is difficult to distinguish ... but visited links are even harder to recognize. See the snapshot below from my Firefox 41....
Marzio De Biasi's user avatar
16 votes
1 answer
404 views

Visits per day: 1

From the link that quid usefully provided in another answer:
Joseph O'Rourke's user avatar
15 votes
2 answers
543 views

Trackbacks are no longer being generated for the arXiv

(Although this is a bug report, I or Anton are likely the people who need to fix it; this post is a bug tracking item, not necessarily a plea for help :-) We previously been scraping the front page ...
Kim Morrison's user avatar
  • 7,630
14 votes
2 answers
342 views

Color of links (both in posts and comments)

I know the issue has been discussed before in the last couple of years (here, here and kind of here), but nothing has been done to solve it, so I thought it would make sense to bring it up again. If ...
Silvia Ghinassi's user avatar
14 votes
3 answers
1k views

List of recurrent technical problems involving MathJax

Edit: I have retagged this question 'feature-request' in an attempt to expedite action on these issues. I request that the MathOverflow developers implement an automatic fix of the issues in the ...
Ricardo Andrade's user avatar
14 votes
1 answer
225 views

Wrong choice of words in info message -- "close" instead of "reopen"

When moving the mouse above the [reopen] button below a closed question which I have voted to reopen, I see the text "You voted to reopen. 3 more votes from other users are needed to close this ...
Stefan Kohl's user avatar
  • 19.5k
14 votes
0 answers
234 views

Long MathJax in comment breaks linewrapping throughout the comment thread [duplicate]

A picture is worth a thousand words; here is what I am talking about, from the comments on this post. By posting a very long formula into MathJax, not only have I caused my own comment to run off the ...
David E Speyer's user avatar
13 votes
0 answers
1k 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 ...
Sam Hopkins's user avatar
  • 23.1k
13 votes
0 answers
361 views

MathOverflow Weekly Newsletter / Greatest hits from previous weeks

I don't know how many look at the MathOverflow Weekly Newsletter, but these were the "Greatest hits from previous weeks": "Video lectures of mathematics courses available online for free" from Feb ...
Joseph O'Rourke's user avatar
12 votes
1 answer
253 views

Braces don't render in preview

When I type braces in math mode in a post, like $\{1,2,3\}$, they don't show up in the preview. See the following screen shot. I tried all the different Math ...
Nate Eldredge's user avatar
12 votes
3 answers
277 views

Broken math on some answers [duplicate]

Here is an example. Is there an automatic way for moderators to fix what I imagine are many answers that somehow now display funny, or should we do it manually, one by one? If the latter, people ...
Andrés E. Caicedo's user avatar
12 votes
2 answers
348 views

Age of Mathoverlow

As was pointed out here, Mathoverflow is listed as being 2012 years old here.
Michael Greinecker's user avatar
12 votes
1 answer
234 views

The tour page is now a generic stackexchange version

In the sandbox phase, the tour page (here: https://mathoverflow.net/about) was populated with MO-specific questions/answers. Now it has generic (and to my mind, overly silly) questions, and I would ...
David Roberts's user avatar
  • 34.8k
12 votes
0 answers
155 views

Buttons (white-on-light grey) look like they are inactive

Many buttons on MO currently have white text on a light grey background, like this: (at least on my browser). The text is not very visible, and moreover this color scheme is often used for inactive/...
Federico Poloni's user avatar
12 votes
0 answers
183 views

Why can't I edit my own deleted questions?

I recently asked a question, thought about it, decided to delete it, and I wanted to add a short note after deleting it explaining why I removed the question. It turns out, I couldn't edit the ...
Asaf Karagila's user avatar
  • 38.5k
11 votes
2 answers
392 views

Double backslashes

The “backslash-bug” from the old version is no longer there. You can simply write { and } to get $\{\}$. However, all the old questions and answers using \{ are now broken and look terrible: $\prod\\{...
The User's user avatar
  • 2,422
11 votes
1 answer
266 views

Notification doesn't go away

I have a notification of a reply to a comment of mine which doesn't disappear from the notification icon on the top of the page. I click on it and it clears but, when I refresh the page or go to ...
Felipe Voloch's user avatar
11 votes
0 answers
102 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 ...
John Omielan's user avatar
  • 1,016
11 votes
0 answers
196 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, ...
Joseph O'Rourke's user avatar
11 votes
0 answers
143 views

MathJax in suggested edits

Pages like https://mathoverflow.net/review/suggested-edits/1435 display suggested edits for review. The original and edited versions are displayed in parallel columns with the differences highlighted....
Neil Strickland's user avatar
10 votes
0 answers
185 views

Wrong message for closing questions as off-topic

I was just reviewing the queue for closing votes, and I noticed that the message displayed in the options for closing as off-topic was: off-topic because... This question does not appear to be ...
Ricardo Andrade's user avatar
9 votes
1 answer
394 views

Trouble understanding criterion to answer protected question

This question is protected, and the box at the end says: "To answer it, you must have earned at least 10 reputation on this site." What does this mean? I am asking because I am currently shown as ...
O.R.'s user avatar
  • 807
9 votes
2 answers
654 views

Mysterious evil scrollbar

While compulsively checking my question, I noticed that a mysterious in-site scrollbar appeared. When I click on the scrollbar, the question disappears and I have to reload! This leads me to believe ...
Matt Samuel's user avatar
  • 2,168
9 votes
1 answer
168 views

On StackExchange.com MO is still Uncategorized

Obviously MO is listed at All Sites/All, but instead of also being at All Sites/Science, like M.SE, it's in All Sites/Uncategorized. (I noticed it back when the age was wrong, but it hasn't been ...
Mark Hurd's user avatar
  • 101
9 votes
1 answer
270 views

I can't post comments on first generation iPad

I have a first generation iPad, with OS 5.1.1, and sometimes look at MathOverflow on it, in the Safari web browser. Recently, it seems as though posting comments has stopped working. I type the ...
Jeremy Rickard's user avatar
9 votes
0 answers
242 views

Where is the off switch for the concurrent preview now?

I feel like an idiot but I cannot find it. Meanwhile, if the post is long and has a lot of LaTeX formulae in it, and the connection is imperfect, the wysiwyg regime is a non-stop fight. I figured out ...
fedja's user avatar
  • 60.9k
8 votes
2 answers
179 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 ...
LSpice's user avatar
  • 11.9k
8 votes
1 answer
234 views

"Offline for maintenance" error message shows incorrect site name

A short while ago, this site was down for maintenance. However, the error page shown during said maintenance period incorrectly stated the name of this site: As you probably know, this site is ...
gparyani's user avatar
  • 101
8 votes
1 answer
269 views

Links to the reputation leagues are broken on MathOverflow

At the bottom of the users page you can find links to weekly / monthly / quarterly reputation leagues. Currently there is the following link: https://stackexchange.com/leagues/week/mathoverflow - it ...
Martin Sleziak's user avatar
8 votes
1 answer
480 views

Math font render problem

I have some issue with the math font for quite some time now. And it only happens on this very site, and not on any other site. Some of the letters, some of the time, don't render part of the top ...
Asaf Karagila's user avatar
  • 38.5k
8 votes
0 answers
78 views

Dialog for closure misleading when question has been closed and re-opened

I noticed, when clicking "close" on this question: Breakthroughs in mathematics in 2023, that when a question has been closed and re-opened, and you voted to close it previously, the dialog ...
Sam Hopkins's user avatar
  • 23.1k
8 votes
0 answers
127 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 ...
Timothy Chow's user avatar
  • 80.1k
8 votes
0 answers
188 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 ...
Jeremy Rickard's user avatar
8 votes
0 answers
233 views

Using MO in China

I am on a business trip in Beijing and get the following error message when using MO: Question: can that somehow be fixed?
Manfred Weis's user avatar
  • 12.8k
8 votes
0 answers
151 views

TeX sometimes displays incorrectly on search pages

When I type a search into the search box, sometimes the list of questions returned contains incorrectly handled TeX (of the sort that once was common all over the place here). Here is an example: ...
Charles Rezk's user avatar
  • 26.9k
8 votes
0 answers
119 views

why can't I link in a question?

I attempted to edit the question wrapping M5-branes on a Riemann surface so that it reads as follows: (begin edit) AdS/CFT gives us a way to use geometry to study field theory! I am trying to wrap ...
Todd Trimble's user avatar
  • 52.6k
7 votes
2 answers
413 views

Did ArXiv trackbacks for MathOverflow stop working again since September 29th 2016?

Did ArXiv trackbacks stop working for MathOverflow, or does the ArXiv server generally suffer from some issues, maybe related to the planned/ongoing modernization of the service? From looking at the ...
Dilaton's user avatar
  • 418
7 votes
2 answers
261 views

MathJax problems in comments

I'm not sure if this has been reported elsewhere. See for example Fred Kline's comment on quid's answer at https://mathoverflow.net/questions/104608/need-help-defining-placeholders-for-primes The ...
Kim Morrison's user avatar
  • 7,630
7 votes
1 answer
199 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-...
LSpice's user avatar
  • 11.9k
7 votes
4 answers
378 views

Will there be an update fixing the rendering?

As has been reported in two previous questions on meta (here and here), the mathoverflow update generated a few problems with the rendering related to mathjax. Initially there was a problem with ...
Ricardo Andrade's user avatar
7 votes
1 answer
282 views

Some users have lost their username

It seems several users have had their name changed after the migration to something default of the form "userNNNN": see for instance https://mathoverflow.net/users/1784/user1784 (VA) https://...
Dan Petersen's user avatar
  • 39.5k

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