TN - HistCl0329001 Trend Client is Missing Data that is Available in Historian

Last updated: March 23rd, 2026

Description

Author: Ernest Lee
Published: March 23rd, 2026

Details:

Everything looks fine in Historian but Trend will show gaps like the screenshot below.

The fix below is recommended to resolve this issue.

Please try the following:

Shutdown/Disable Historian
Run REGEDIT,
go to HKEY_LOCAL_MACHINE\SOFTWARE\ArchestrA\Historian\Programs\aahStorage
Create DWORD value UseFileCacheForRetrieval and set it to 0.
Enable\Allow to run Historian

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