[Issue] Session Resume error: "Cannot read properties of null (reading 'map')"

[mathewc]

Issue Description
Tried to resume a session from yesterday and this error is showing

Thread ID
194b8dde-2a32-4cc4-9144-75dfe4d963e7

Steps to Reproduce
Try to open https://sre.azure.com/externalagents/appsvc-functions-cri/?agentUrl=https%3A%2F%2Fappsvc-functions-cri--98b1ffe1.191f40b3.eastus2.azuresre.ai#/views/thread/cd2547dc-b84b-4770-8d12-1bb58e452a44