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AVEVA™ System Platform

Historian resolved issues

  • Last UpdatedSep 24, 2026
  • 1 minute read

The following issues have been resolved in this release:

Defect ID

Case Number

Description

4420833

962711111

Null values were displayed in Runtime.dbo.Live while the object viewer displayed a value with good quality.

4426801

962684686

aahStorage VTQ count of 1000 errors displayed during replication from T1 to T2 Historian.

4497189

962703941

VSS backup caused issues with main storage.

4526022

962626739

Delete statement conflicted with REFERENCE constraint.

4544670

962722341

SQL query results were inconsistent.

4600670

962757303

Metadata Server COM exception caught when timestamp data type was binary.

4756231

960373266

Tag importer wizard took a long time to import.

4779503

962828011

Some SQL queries stopped working after installing SP 2023 R2 SP1 Patch 04.

4772172

962823859

Historian Client Web Modern: Performance degraded when switching Y-axis configuration to multiple.

4774298

962826154

Runtime database failed to upgrade to SP 2023 R2 SP1 Patch 04 version.

4756398

962806380

Incorrect filter behavior resulted in OpcQuality 0 and Quality Detail 24 values returning junk characters.

4793463

962823361

App crashed aahClientAccessPointNG.exe on all the AOS nodes.

4749814

962797874

Historian Client Web: trends would appear flat when too many tags were selected over too long a time period.

4971411

962875308

Historian failed during SQL insert and ended up in Cache Overflow state.

4767323

962823209

Expression summary calculator did not use the optimistic quality behavior.

4976358

962901492

AnalogSummaryHistory Returned OPCQuality = 0 for Queries under 4 Hours.

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