Origin 2026b Bug Fixes

ORG-31740

Virtual matrix cannot find certain sheetname

1. Highlight entire sheet (1640+1655+1670)/(1440+1450) and plot Contour - Color Fill.
   ==>plotvm dialog throws error “Please select a worksheet with numeric values”

2. Go to the Input field and add quotes around the sheetname. I.e.
   [prist0degS2]”(1640+1655+1670)/(1440+1450)”
   -->plotvm dialog accepts the sheet.

Fixed in Origin2026b.

ORG-31170

Fail to click the node to select if outside page view in graph

1. activate the Dendrogram graph to click on a node
   - ->if the node is inside page view it will show a point for selection
   = =>if the node is outside no point show

Fixed in Origin2026b.

ORG-32563

Angle annotation angle is not same as setting

Case1: Angle annotation precision issue

1. Add angle annotation in graph, in Obejct Properties dialog: Dimension tab

2. Set Angle as 30 and OK, open dialog again
   ==> Changes to 29.97 or 30.3

Case2: Angle bigger than 180

1. Add angle annotation in graph, in Obejct Properties dialog: Dimension tab

2. Set Angle as 230 and OK
   ==> Shows 130.01

Fixed in Origin 2026b

ORG-32640

Distance Annotation object changes to an extreme length in vertical direction

1. Fill column A B with row number, C with random data, plot 2Ys Y-Y

2. Active layer 2, add distance annotation, click first point in empty area, try to snap to plot 1, which is belong to layer 1
   ==> The annotation will be outside.

Fixed in Origin 2026b

ORG-32637

height of right brace increases out of proportion

1. new a graph and change X axis scale to 2000

2. use the bracket icon at left hand side toolbar to add a bracket

3. select the bracket and click the Right icon at the mini toolbar
   ==> height of the brace increases out of proportion

Fixed in Origin 2026b

ORG-30930

Axis fails to recognize Anchor Tick value when date format not match OS Region setting

1. open Region dialog from Control Panel of your PC

2. change Format to Chinese(Simplified, China) / / - - > Short date format is yyyy/M/d

3. click OK

4. open attached project which has timeline graph
   ==> Graph2’s X axis scale biased

Fixed in Origin2026b.

ORG-32779

Undo Fail for Data Highlighter + Mask on Graph

1. Make scatter plot with random data.

2. Use Data Highlighter to select multiple points. Then click Mask Highlighted Points in the mini panel.

==> try to unmask those points by Ctrl + Z but doesn’t work.

Fixed in Origin2026b.

ORG-32807

fail to unmask data point from graph window

1. New workbook and fill col(A) col(B) with row numbers

2. Mask row 2 in col(A) and row 5 in col(B), make a scatter plot

3. With the graph active, use Unmask Points on Active Plot toolbar to unmask these two data points

==> The 2nd point is still in masked status, fixed in Origin2026b

ORG-31453

Fail to open show/hide layers dialog in Cluster plot if open Project by Appending project

1. Select File: Append to append the attached project(Multi-Panel Graphs - Clustered Column Plot.opju). you may also Open Learning Center, search Multi-Panel Graphs - Clustered Column Plot to open it.

2. Click green lock in graph and select Show/Hide layers(s).
   ==>Fail to open show/hide layers dialog.

ORG-32616

MT Statistics Reference Line failed on Right-Y

1. Make a Double-Y plot (with right-y axis)

2. Select the Right-Y axis and open ‘Add Reference Line' in Mini-toolbar. Make sure axis is 'Right Y’

3. Click the Triangle button in dialog and select Maximum.
   ==>Notice it fills in with "Max(plotdata(*, Z))".

4. Click OK.
   ==>Reference line does not appear.

ORG-31337

Selected column issue in active wks for stiff map

1. Save the stiff map structure data as ogwu

2. open the ogwu twice, notice that one is book5, another is book6

3. activate book6, select plot: map: stiff map

4. click the triangle button of Na, select G(Y)
   ==> hint: the current plot type requires all selected columns be in a same worksheet.

5. click the triangle button of location, select B(Y)
   ==> it is book5, not book6

ORG-32816

Connect Begin and End for Line Plot for All Coordinates

Create line plot in polar coordinate, there is Connect Begin and End checkbox in line plot to connect 1st and last point. Now this checkbox shows for all line plots, so can do it in any coordinates.

ORG-32413

Some Properties of Box Fail to apply when share layer properties

1. Make a 2 layer box plot with box plots in each layer.

2. Open Plot Details dialog and go to Layers tab to check Layer Properties and Plot Properties in graph

3. Select plot in top layer, change box style or box type or line in Mini Toolbar ==> fail to change any plot

ORG-32113

Add checkbox “Show Legend Only When Number of Plots in Layer > 1”

1. In Graph Options, I have set Legend position to Smart and checked Show Legend Only for Multiples Entries

2. Each time I plot a single dataset, I get the following error message:

3. ==> LEGEND.SMARTPOS is illegal name for defining a variable
   unknown error in expression assignment

Fixed in Origin2026b.

ORG-32900

Error Bar drawing issue

Open the attached project file pmso.opju, which is including Y error bars plot

==> In Graph4, the error bar of the first triangle symbol only shows half.

Fixed in Origin2026b.

ORG-30159

Runtime error when initial parameter with formula in Implicit fit

1. Import data and highlight B, open Nonlinear Inplicit Curve Fit

2. Choose Function as Ellipse, go to Parameters tab, check Initial Formula checkbox

3. Set xc’s formula as “XATYMAX“, set the other formula as “2“.

4. Click the Initialize Parameters button
   ==> Runtime error: invalid bounds for vector operation

In Origin2026b, will not show runtime error

ORG-30710

NLFIT Results table failed to generate in source graph

1. New a worksheet with 3 column

ORG-30710

NLFIT Results table failed to generate in source graph for multiple variables function

1. New a worksheet with 3 column of data, plot Scatter

2. Open NLFit dialog with graph, pick for example LineExp function from Multiple Variables category

3. Go to Data Selection page on Settings tab, expand the Input Data node, and set col(C) as y2

4. Go to Output page, make sure Output>Graph>Result Table is set as Source Graph, or Source and Report Graphs, click OK
   ==> No results table added on the source graph

Fixed in Origin2026b

ORG-31617

Signal processing tools should treat empty input data as valid

1. Open script window,execute following script

   newbook; col(1)={1:1:100};col(2)={1,2,4,7}; cwt -r 1 ix1:=1 ix2:=2 plot:=0;

2. Select col(A) and col(B) in source sheet, press delete key to remove data.
   ==>lock turn to red

Fixed in Origin2026b

ORG-32715

Source label and Dataset Identifier issues on fitting reports

1. Import any data with two Y data, highlight col B&C to open Linear Fit dialog.

2. Go to Output tab, under Dataset Identifier branch, set Identifier box as Booka Name, Sheet Name and Units (remove the default Name entry), check Show Identifier in Flat Sheet, click OK.

3. Activate FitLinearCurve1 sheet.
   ==> There is only 2 user defined label rows enumerating with “Dataset ID”, which should be 3.

Fixed in Origin 2026b

ORG-32800

NPHKSamples: wrong footnote for Median test

In the (NPH) K Independent Samples’s report, Median Test table

==> Footnote is “the populations are significantly different“ even though P value is greater than significant level.

Issue existed since Origin 2024 and is fixed in Origin 2026b.

ORG-32728

Duplicate operation with Specified sheet for GLR(General Linear Regression)

Origin 2026b with GLR(General Linear Regression) v1.72 supports Duplicate Operation for Specified Sheets.

ORG-32973

Result for 1-Proportion Test and 2 Proportion Test is Wrong

Issue is fixed in Origin 2026b.

APPS-2473

Runtime error when P value is NANUM and design has blocks

Issue is fixed with new version(>2.71) of Design of Experiment APP.

ORG-32495

Auto Refresh Failed on Certain Project

Both auto refresh for data connector and auto save project fail when there is notes window that render once in default Origin Rich Text.

Fixed in Origin2026b.

ORG-32541

<Project Folder><PE Path> fail to export graphs to corresponding sub-folders correctly

Origin will not generate subfolder structure when path is set to <Project Folder><PE Path>.

Fixed in Origin2026b.

ORG-32870

A part of trend line will disappear when using Send Graph to Word

Plot multiple layer graph, show trend line on the plot, click Send to Word by page mini toolbar
==> Part of trend line will disappear, fixed in Origin 2026b

ORG-32957

Python issues with pandas==3.0.0

Python function Worksheet::from_df() fails to work with pandas==3.0.0.

Fixed in Origin 2026b.

ORG-32437

Crash on MT pop up menu

1. Plot Scatter with data, click on layer to show layer mini toolbar

2. Click Add Plot and quickly click outside
   ==> Mini toolbar gone but the context menu shows

3. Click on context menu
   ==> Will crash sometimes

Fixed in Origin 2026b

ORG-32774

No searched result for multiple words issue in Search Box

No searched result for multiple words issue in Search Box

Fixed in Origin 2026b

ORG-33061

UIM Comboxes in user's macros show garbled text

When open project with UIM Comboxes in user’s macros, show garbled text

Fixed in Origin 2026b