Known Issue 471

Under certain conditions while running loss grouping, loss values may be reported more than once within loss output tables, resulting in inflated loss totals for affected events or perils. Thus, duplicate loss gets reported in loss output tables.

Issue ID	471
Summary	Under certain conditions while running loss grouping, loss values may be reported more than once within loss output tables, resulting in inflated loss totals for affected events or perils. Thus, duplicate loss gets reported in loss output tables.
Description	During loss grouping, losses may be generated at both the sub-peril and grouped peril level, causing the same loss to appear under both levels. Additionally, when a loss grouping analysis is saved with only Subarea and Location Summary selected, certain EventIDs produce duplicate entries in the exported Year-to-Loss table.
Resolved in	Touchstone hot fix 13.2.3
Date posted	07/25/2026
Software versions affected	13.x
Feature set	Loss grouping
Models	All
Potential for loss numbers impact	Yes
Workaround