Known Issue 456

Analysis failures have been observed when running loss grouping analyses especially on large numbers of cores.

Issue ID	456
Summary	Analysis failures have been observed when running loss grouping analyses especially on large numbers of cores.
Description	Performance enhancements specific to detailed loss analyses had a downstream impact on loss grouping analyses causing failures.
Resolved in	Touchstone 2025 (13.1)
Date posted	12/11/2025
Software versions affected	13.0
Feature set	Loss grouping
Models
Potential for loss numbers impact	No
Workaround	Setting the analysis configuration to a smaller number of cores (max 2) can help with the completion of the analysis although it may impact performance.