Server crashed and produced thread dumps
Development instance crashed during active development duration. The issue stems from what seems like a resource intensive reference property use.
The thread dumps are caused by a large stack of these getAllReferences and putAll method calls:
This engine stack is called by your_Activity executed as part of your_flow.
Steps to Reproduce
An issue in the custom application code or rules.
Perform the following local-change: Inspect and remediate the reference property calls from your_Activity executed as part of your_flow.