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NI-Digital Pattern Driver 2026 Q1 Bug Fixes

Overview

The following items are notable issues fixed between the release of NI-Digital Pattern Driver 2025 Q4 and NI-Digital Pattern Driver 2026 Q1, 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 NI-Digital Pattern Driver.

Bug Number

Legacy ID

Description

Details

3463263

Shmoo and Digital Scope axis labels sometimes show too many digits

In certain situations, depending on the axis range and number of steps or divisions, the Shmoo and Digital Scope plot axis labels will show more digits than appropriate.

Workaround:

There is currently no known workaround for this issue.

Reported Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2025 Q3 | NI-Digital Pattern Driver and Digital Pattern Editor: 2025 Q4

Resolved Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2026 Q1

Added:

Nov 8, 2025

3417455, 3443109, 3443215

NI-TClk .NET publisher policy files redirect to incorrect versions, causing assembly binding failures for .NET applications

Starting with NI-TClk 2023 Q4, the .NET publisher policy files for NI-TClk (`NationalInstruments.ModularInstruments.TClock`) redirect to incorrect versions rather than the actual installed versions of the corresponding .NET assemblies.
This causes .NET applications that were built using older versions of this library to fail to load.

Workaround:

Manually update the .NET publisher policy files in "C:\Windows\Microsoft.NET\assembly\GAC_MSIL" to redirect to the actual installed versions of the relevant .NET assemblies in "C:\Windows\Microsoft.NET\assembly\GAC_MSIL".

Reported Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2023 Q4 | NI-TClk: 2023 Q4

Resolved Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2026 Q1

Added:

Nov 13, 2025

3700622

When using scan opcodes on an Instrument Group with some instruments having <=16 scan pins, incorrect values for scan pins may be used

When executing a pattern when using an Instrument Group, some pins using the scan opcode may generate incorrect data when at least one instrument uses more than 16 pins as scan_in pins or more than 16 pins as scan_out pins, and at least one instrument uses 16 or fewer pins as scan_in pins or 16 or fewer pins as scan_out pins.

Workaround:

Avoid using Instrument Groups or ensure all instruments in the Instrument Group have either more than 16 scan pins or 16 or fewer scan pins in the pattern.

Reported Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2025 Q2 | NI-Digital Pattern Driver and Digital Pattern Editor: 2025 Q3 | NI-Digital Pattern Driver and Digital Pattern Editor: 2025 Q4

Resolved Version:

NI-Digital Pattern Driver and Digital Pattern Editor: 2026 Q1

Added:

Jan 27, 2026

Additional Patch Information

Installing some patches may require certain additional steps or considerations. Please refer to the following table for more information about patches for this release.

These patches currently do not have any special instructions.

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).