FlexLogger 2020 R1 Known Issues


This document contains the FlexLogger 2020 R1 known issues that were discovered before and since the release of FlexLogger 2020 R1. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product.


Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community.

Bug Number

Legacy ID




Built-In CJC Not Selectable for PXIe-4302/3

For the PXIe-4302 and PXIe-4303 modules, the option to select the Built-In CJC, which is provided by the terminal block, is not available. 


There is no option to select the Built-In CJC, but you can still select and configure a constant CJC Source.

Reported Version:

FlexLogger 2020 R1

Resolved Version:

FlexLogger 2020 R2


Jan 17, 2020


Adding DAQ Channels in a Non-sequential Order Corrupts Anything Referencing a Channel

When new DAQ channels are configured in non-sequential order within a device (PXI, cDAQ, FieldDAQ, USB, etc.), any existing or future calculated channels, plugins, logging triggers, and events reference the wrong channel. This means that calculated channels and plugins will be operating on the wrong data and events and triggers may not fire when expected. To obtain more information, click the link below.


Save and re-open your project after you have finished all new channel configurations and before you validate the project.

Reported Version:

FlexLogger 2020 R1 | FlexLogger 2020 R2 | FlexLogger 2020 R3

Resolved Version:

FlexLogger 2020 R4


Sep 10, 2020

Final Time Issue Listed

Issues found in this section will not be listed in future known issues documents for this product.
There are currently no issues to list.

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Glossary of Terms


  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).