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From Saturday, Nov 23rd 7:00 PM CST - Sunday, Nov 24th 7:45 AM CST, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
The following items are notable issues fixed between the release of LabVIEW 2019 SP1 and LabVIEW 2020, including additional patches and service packs. If you have an issue ID, you can search this list to validate that the issue has been fixed. This is not an exhaustive list of issues fixed in the current version of LabVIEW 2020.
|
Bug Number |
Legacy ID |
Description |
Details |
|---|---|---|---|
| 1158778 |
NIPM does not discover the LabVIEW 2020 f1 UpdateOnly the code that makes the patch appear in NIPM was changed. Workaround: This issue was fixed in the LabVIEW 2020 f2 patch.
|
Reported Version: LabVIEW 2020 f1 Resolved Version: LabVIEW 2020 f2 Added: Nov 4, 2020 |
|
| 1009923 |
Using Asynchronous Calls by Reference in LabVIEW 2019 SP1 can cause a memory leak.Workaround: Fixed in the LabVIEW 2019 SP1 f3 and LabVIEW 2020 f1 patches.
|
Reported Version: LabVIEW 2019 SP1 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1057446 |
Dynamic Dispatch method overrides do not save updatesIn specific situations, changes made to method overrides will not save. Reopening the VI after saving changes will show the previous code. This prevents users from updating Dynamic Dispatch VIs for child classes.
Workaround: None
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 997305 |
LabVIEW can crash or display incorrect text characters when "Use Unicode UTF-8" option enabled in WindowsOn systems that have the Windows option "Beta: Use Unicode UTF-8 for worldwide language support" enabled in Region settings, LabVIEW can crash or display garbled text in some languages. To find the Region settings go to Control Panel > Region > Administrative > Change system locale... This option causes the system default code page to be UTF-8, which LabVIEW does not support. Workaround: Disable the "Beta: Use Unicode UTF-8 for worldwide language support" option in Windows. |
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 5, 2020 |
|
| 1054835 |
SHA-256/SHA-224 results are incorrect for some message sizesLabVIEW returns the wrong value for a SHA-256 and SHA-224 for message sizes 56, 120, ..., (N*64+56) bytes
Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1019181 |
Unable to install package: ni-vipmAn error can occur during the LabVIEW 2020 installation which prevents the install of the package ni-vipm
Workaround: Deselect VI Package Manager when installing
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1056583 |
Right-clicking on a class wire/terminal/control when when right-click plugins causes crashWhen using right-click plugins, LabVIEW can sometimes crash if right clicking on a class wire, terminal, or control. Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1014647 |
LabVIEW hangs when the LabVIEW CLI tries to disconnect from the target LabVIEW instanceAutomated build systems using the LabVIEW CLI can cause LabVIEW to hang sometimes when disconnecting in the middle of a build. Workaround: Avoid trying to disconnect while building.
|
Reported Version: LabVIEW 2019 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1009119 |
XControls do not load correctly when placed in subVIWhen a XControl is placed in a subVI, the XControl may not appear.
Workaround: Temporarily fix by redropping the XControl in the subVI, but the problem will return when the VI is loaded again. No workaround for built applications.
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1048670 |
LabVIEW crashes with id 0xC0000005 when using some forms of error tracingWorkaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1078977 |
LabVIEW 2020 crashes when using the File >> New.. dialog and selecting Class or InterfaceWorkaround: Add a class by right clicking and selecting New >> Class or Interface
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1000558 |
LabVIEW can crash when the Class Hierarchy window is open and missing dependencyIf there is a class or interface which has a missing dependency class or interface and the LabVIEW Class Hierarchy window is open and the missing dependency is selected when you close the project or quit LabVIEW, a crash may be encountered. Workaround: Deselect the missing item before closing or close the Class Hierarchy window
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1047200 |
VI for Override Throws Error 7 when overriding Packed Library with Debugging Enabled in LabVIEW 2020Try to create an override VI in a child class which inherits from a parent inside a Packed Project Library and debugging is enabled, it fails with Error 7.
Workaround: Build override VI manually.
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1072837 |
Casting Utility For Actors.vim has incorrect error handlingWhen messages are created for interfaces there may be incorrect error handling behavior due to wiring in the Casting Utility For Actors.vim
Workaround: Modify the VIM manually
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1055195 |
"Casting Utility For Actors.vim" causes dependency issue when used in a PPLWorkaround: Edit new messages to separate from the VIM
|
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 1043411 |
RFmx Memory leak in LabVIEW 2020Large RFmx applications could see large memory leaks under some circumstances
Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2020 Resolved Version: LabVIEW 2020 f1 Added: Aug 31, 2020 |
|
| 166601 | 545835 |
LabVIEW Runtime Engine encounters Worker Thread Limit when using web services on Linux RT-based cRIOOn a Linux RT-based cRIO, the LabVIEW Runtime Engine can get into a deadlocked state waiting for action from the Web Server. This can cause process hangs resulting in a Worker Thread Limit error reported to the user by the Web Server. Workaround: Use a mechanism other than web services. |
Reported Version: LabVIEW 2015 Resolved Version: LabVIEW 2020 Added: Feb 11, 2020 |
| 221253 | 509876 |
Bundle by Name function can send wrong pointer into subVI with Call Library Function NodeIf a main VI has the output of a Bundle by Name function connected to a subVI, a Call Library Function node within the subVI can receive the wrong pointer from the wired cluster. Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2013 SP1 Resolved Version: LabVIEW 2020 Added: Aug 7, 2016 |
| 320200 | 704376 |
EXE including 'Std Deviation and Variance' VI is unloadableBuilding an executable including a VI that uses the 'Std Deviation and Variance' VI results in an error: "(Hex 0x464) VI is not loadable". Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2018 Resolved Version: LabVIEW 2020 Added: N/A |
| 316578 | 457854 |
Aborting a VI can leave VIs targeted by a Call By Reference node reserved permanentlyWorkaround: Close the project to unreserve the VI |
Reported Version: LabVIEW 2013 Resolved Version: LabVIEW 2020 Added: Feb 18, 2020 |
| 166386 |
Incorrect behavior when using a Boolean control from the System paletteWhen using a Boolean control from the System palette and running the VI, you do not see the "hover" picture change. When clicked, the value stays consistent, but the button does not change visually.
Workaround: Do not use the System Boolean buttons or place them inside another structure. |
Reported Version: LabVIEW 2017 SP1 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
|
| 166645 |
LabVIEW Application Builder fails to build a Source Distribution on Windows when using some specific vi.lib VIs that contain non-Windows componentsWhen using some specific vi.lib VIs (including vi.lib\Utility\tdmsutil.llb\TDMS Component Path.vi) that contain non-Windows components, LabVIEW Application Builder will fail to build a Source Distribution on Windows.
Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2015 SP1 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
|
| 188865 |
When making multiple calls to Python function in a For Loop, the Python execution treats the passed data as a list, rather than a NumPy arrayWhen making multiple calls to Python function in a For Loop, the Python execution treats the passed data as a list, rather than a NumPy array.
Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2019 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
|
| 221209 |
Hovering over an override method in the Project Explorer does not show parent class description if the VI has empty descriptionWorkaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2017 SP1 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
|
| 166772 | 587931 |
Special characters (\r, \n, etc.) are not correctly converted to JSON when using LabVIEW Web servicesWhen a LabVIEW Web service is set to the JSON output type, strings with special characters such as tab constant, carriage return constant, and end of line constant are not escaped properly. This does not include the /s character.
Workaround: There is currently no known workaround for this issue. |
Reported Version: LabVIEW 2015 SP1 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
| 166397 |
Calling a Channel Write VI by reference in a loop results in a compiler errorWorkaround: Call this VI by reference outside the loop. |
Reported Version: LabVIEW 2017 SP1 Resolved Version: LabVIEW 2020 Added: Apr 20, 2020 |
These patches currently do not have any special instructions.