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Corrupt list exception occurs while using a Tree grid




Corrupt list exception occurs while using a Tree grid.

Error Messages corrupt list: property not in parent's list!
    at com.pega.pegarules.exec.internal.declare.infengine.cbi.ExecutionPlanner.<init>(
    at com.pega.pegarules.exec.internal.declare.infengine.InferenceEngineImpl.invokeForwardChaining(
    at com.pega.pegarules.exec.internal.declare.infengine.InferenceEngineImpl.forwardChain(
    at com.pega.pegarules.exec.internal.declare.infengine.InfEngUtilsImpl.forwardChain(
    at com.pega.pegarules.exec.internal.declare.infengine.InfEngUtilsImpl.forwardChain(

Steps to Reproduce


Open pages with referenced properties in a Tree grid.

Root Cause

A defect in Pegasystems’ code or rules. Exception occurred due to an issue with the Auto populate properties during page copy.


Apply HFix-50611.
Suggest Edit

Published February 20, 2019 - Updated October 8, 2020

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