Symptom
Some of the transaction time displays as “Invalid Date” when viewing from Strategy Workstation change journal, while some displays well if the day of the month is 12 or less, for example “06/10/2023”, please see below screenshot:

Reproduce steps
Cause
This has been identified as a defect in Strategy 2021 Update 6, Update 7, Update 8.
Action
This issue has been fixed in Strategy 2021 Update 9. Upgrade to this version to take advantage of the fix.