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Questions tagged [bugs]

This tag is reserved for questions where the problem has been vetted by this community and the observed behavior is confirmed to be a bug. Please do not use this tag for new questions. Please use the standard bugs header instead of version tags in conjunction with this tag.

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6
votes
0answers
60 views

Why can' t ChromaticPolynomial[GridGraph[{7, 8}], 4] return results

Bug introduced in 10.0 and persisting through 12.0 ChromaticPolynomial is new in 10.0 Why can' t ...
7
votes
3answers
121 views

Move input cursor to after cell group

Bug introduced in 8 or earlier and persisting through 12.0 I am looking for a way to move the input cursor to after the current cell group. The following example illustrates the situation I am ...
3
votes
0answers
63 views

Trying to create Personal Data Resource in Wolfram Cloud Notebook

I am trying to create a Personal Data Resource from within a Wolfram Cloud notebook. I'm following the instructions at: https://reference.wolfram.com/language/workflow/SetUpAPersonalDataResource.html ...
6
votes
1answer
43 views

NearestTo causes a kernel crash when applied to a list of SparseArrays [closed]

Nearest and NearestTo cause a kernel crash on Mathematica 12.0.0 for Mac OS X. (running on OS X 10.11.6) when operating on a list of SparseArray vectors. Here's my minimal breaking example: ...
2
votes
0answers
49 views

PubChem Service doesn't support isomeric SMILES specifications?

Consider the molecule defined by the following SMILES string: example = "C(/C=C/Cl)Cl" (the slashes indicate cis/trans isomerism). Molecule[] has no problem ...
2
votes
1answer
27 views

SDF Metadata Import fails when structure information is missing

Background Information: In Mathematica 12, SDF Import automatically triggers the generation of Molecule[] representations. SDF files contain both structural information as well as metadata, and a ...
0
votes
1answer
44 views

mathematica stop working after running some .nb file and close or save the file

Bug fixed in 8.0.4 for Chinese edition only, generally fixed in or before 11.3. I'm using version 7 on Windows. After I running one .nb file and just want to ...
25
votes
2answers
881 views

Possible bug in NMaximize function?

Bug introduced in 12.0 In 12.0.0 for Microsoft Windows (64-bit) (April 6, 2019) writing: ...
8
votes
2answers
170 views

TimeLinePlot tooltip shows Day rather than Year

Update 2019-11-28 WRI has confirmed that this is a bug. Update 2019-11-25 The workaround suggested by @alx works if all of the dates have the same granularity. While experimenting with the ...
6
votes
1answer
89 views

ReplaceList Except Alternatives bug

Bug introduced in 11.3 or earlier and persisting through 12.0 or later [CASE:4352435] and [CASE:4354378] In Mathematica 11.3 and 12.0, ...
15
votes
0answers
186 views

Mathematica v12 Integration bug?

Bug introduced in 12.0 After upgrading to mathematica 12, this integral gives the wrong result, also with other types of similar integrals. ...
2
votes
1answer
70 views

Search using Query fails accessing ChemSpider with Mathematica

Performing a search with "Formula" works as expected. Search with "Query" fails. Printout attached to better document the problem.
5
votes
1answer
41 views

How to use StepMonitor in NMinimize when using vector variable

Bug persists through 12.0 For example, when I call this code ...
10
votes
0answers
161 views

Connecting notebook to remote kernel

I'm trying to connect my FrontEnd session to remote kernel. Manual connection works by creating LinkObject like so: ...
11
votes
1answer
99 views

Nondeterministic $Failed when mapping over a Dataset

Consider the following simplified example (on Mathematica 12): ds = Dataset@{<|"hell" -> "o"|>, <|"hell" -> "no"|>}; ...
2
votes
1answer
31 views

DensityPlot: Error messages and strange bar legend

Bug introduced in 11.1.1 or earlier and persists through 12.0 I want to plot the following DensityPlot with axes given by Trr ...
4
votes
1answer
40 views

Plotting with sub and superscripts on the PlotLabels

Bug persists through 12.0. I'm trying to produce a plot with PlotLabels that include sub- and superscripts. However, I haven't been able to do it consistently. ...
8
votes
1answer
185 views

ColorFunction doesn't work with custom PlotMarkers

Bug introduced in 10.3.0 and persisting through 12.0 or later This works: ...
2
votes
1answer
68 views

JavaGraphics` and CreateDialog don't work with ListPlot in Mathematica 11.3/12

Bug introduced in 11.2 and persists through 12.0, case 4331202 I'm trying to see some plots based on data from a remote cluster as it runs various Mathematica 11.3/12 scripts, so I want to use the ...
8
votes
0answers
137 views

The most bizarre kernel crash ever. Kernel crash in Integrate under simple different setups. Unable to find cause

Reported to WRI. CASE:4330461 V 12 on windows 10 64 bit. Note: This problem do not show up in V 11.3. Only in V12. For the last 2 hrs, I've been trying to zoom into why V12 kernel crash when ...
2
votes
2answers
89 views

What causes Autonumbering to stop working after “Evaluating” Notebook in 12.0

Bug introduced in 12.0 I'm using "Section" autonumbering in a notebook that contains text and calculations. Normally my "Section" style numbering looks like: ...
5
votes
2answers
85 views

ChartBaseStyle in BarChart3D - possible bug

It looks like ChartBaseStyle in BarChart3D doesn't work in Grid mode when the matrix is larger than 9x9: ...
10
votes
1answer
160 views

Mathematica 12: Failure with URLRead

Bug introduced in 12.0 The following HTTP request fails to submit the body under version 12, but works in Mathematica 11: ...
4
votes
1answer
102 views

Why should the format of an integral affect the result

This has been reported to Wolfram and confirmed as a bug in Mathematica V12 This follows on from This question I get a different answer for the same integral input in different ways e.g. ...
2
votes
0answers
62 views

Which words are “protected” from the built-in spell checker?

Bug persisits through 12.0 [CASE:4331923] Some time ago Alan raised an interesting question about spell checking in Mathematica in a comment: <...> does Mma actually recognize Euclidian (vs ...
10
votes
1answer
120 views

Memory leak with FindMaximum/Minimum inside of Module

This is my first question here. I have to solve coupled first order ODE-s and find the maximum of a function which depends on the solution of the ODE. I have to do this calculation in large quantities,...
7
votes
1answer
83 views

`PlotLegends` not showing correct colour

I want to make a Plot with a styled line, as follows: ...
2
votes
0answers
95 views

Is Mathematica computing the conditional expectation correctly?

Given a simple case of say 2 independent trials each with probability of success 1/3. Consider a random variable that is gives the 3 times the total successes. We can define this random variable in ...
4
votes
2answers
72 views

GeoListPlot - Workaround for distinct coloring of categories - improvement?

GeoListPlot supports multiple lists of locations but once the number of lists exceeds 3, the coloring function for the categories starts to recycle the colors. For example, adding a list to the ...
7
votes
1answer
90 views

Module vs. DynamicModule wrt ProgressIndicator

Why does the following work for Module but not DynamicModule? ...
5
votes
1answer
60 views

Weirdness with Interpolation of data and InverseFunction

Bug introduced in 8 or earlier and persisting through 12.0 Something strange is happening with this list of data: ...
8
votes
3answers
440 views

Numerical minimum of a one-valued function

Bug introduced in 12.0 [CASE:4332003] My problem is that the Kernel cannot finish computation and eats up memory when a simple constraint like 0 <= x <= 2 is ...
5
votes
0answers
124 views

White triangles in ListContourPlot

I'm using ListContourPlot with InterpolationOrder -> 0 to plot some data and end up with some seemingly random white ...
9
votes
1answer
296 views

Why ArcTan[1, 0. I ] yields -1.5708+0. I?

Bug introduced in 5.2 or earlier and persisting through 12.0.0 Why ArcTan[1, 0. I ] yields -1.5708+0. I ? The result should ...
8
votes
0answers
54 views

Probable bug in EdgeAdd when adding edges to multigraphs

Bug introduced in 10.0 or earlier and persisting through 12.0 M10.0.2 and M10.3 return a wrong result without errors. M11.0 and M12.0 issue a flood of messages and sometimes crash. I am using ...
9
votes
2answers
131 views

FindMaximum returns a solution that violates the constraints

I am looking at the following optimization problem $$ \begin{align*} \max\ & 1000 r_1 + \frac{1}{2}r_2 + \frac{1}{3}r_3\\ \text{s.t. }& 1000^2 r_1 + \frac{1}{4}r_2 + \frac{1}{9}r_3 = \frac{1}{...
6
votes
1answer
78 views

DensityHistogram, “Log” plot with specific binning not working in Mathematica12

I have a problem plotting log with specific binning using the DensityHistogram. The following worked till Mathematica 11 but not anymore with Mathematica 12: ...
7
votes
2answers
93 views

Fullsimplify output depends on variable order

Bug introduced in 5.2 or earlier and persisting through 12.0 or later Mathematica 11.3.0.0 (used on a Mac) seems to give different results when using FullSimplify. ...
10
votes
3answers
170 views

Confirmed Bug: Why does Eliminate fail while Solve succeeds?

OP EDIT: Wolfram Technical Support got back to me and confirmed this is a bug. But the Answers below provided good workarounds. I have two polynomials respectively in {z,c} and in {r,z,c}. I'd like ...
11
votes
1answer
164 views

How to set FenceWidth in logarithmic plot?

Mathematica 12 introduced a built-in support for logarithmic plots with error bars. A plot with default styling looks as expected: ...
2
votes
0answers
74 views

FindClusters giving complete wrong groups from very simple array

Bug introduced in 8.0.4 or earlier and later fixed in 11.3 or earlier. I've been trying to use FindClusters function in Mathematica and it wasn't working well when ...
2
votes
1answer
84 views

Syntax highlighting indicates I'm unable to comment properly in Mathematica using (**)

I wanted to "comment" some code so the input inside (* *) is ignored. I tried this but the last term z[3] looks like it is not ...
8
votes
0answers
275 views

DEigenvalues and NDEigenvalues return different values

In the following example, DEigenvalues and NDEigenvalues return different results despite having identical arguments. Does anyone know why? (I use Mathematica 11.3) ...
4
votes
1answer
125 views

Does ListPlot Joined Dotted crash front end reproducibly for large number of points?

The problem The following code crashes Mathematica 12 for Windows 64 front-end reproducibly in my computer (Win7 Pro, i7-4770 3.4GHz 16Gb RAM). ...
10
votes
1answer
82 views

WVM hangs or crashes on empty array when compiled Listable

Bug introduced in 12.0 and persisting through 12.0 or later When I run the following code, the kernel hangs indefinitely: ...
6
votes
0answers
101 views

Problem with my user name

I'm trying to use the new website ("Wolfram Function Repository") and i get the following error: ...
7
votes
1answer
139 views

NetTrain Freezes Computer

I have a neural network I am trying to train: ...
3
votes
1answer
210 views

Mathematica cannot compile complex-valued interpolated PDE coefficients? (NDSolve, Finite Elements)

Bug introduced in 11.1 or earlier, fixed in 11.3 or earlier. The following PDE pde = I Cos[x y] D[u[x, y], x] + Laplacian[u[x, y], {x, y}] == 0; Is happily ...
22
votes
1answer
221 views

Possible Memory Leak Issues in NestWhile

Consider the following code snippet: NestWhile[{#[[1]]+1,Pause@.001;ConstantArray[0,{100, 100}]}&, {1}, (#[[1]] <= 10000) &, 2] In theory, when ...
4
votes
1answer
98 views

Triggering WhenEvent as a result of WhenEvent

I'm attempting to solve a dead-simple differential equation with events: ...