Symptom
Crash in grpc_server due to signal SIGSEGV with logs showing:
"panic: runtime error: invalid memory address or nil pointer dereference"
Conditions
AP is joined to WLC with any Intelligent Capture (ICAP) features / subscriptions enabled.
Workaround
Disable all Intelligent Capture (ICAP) features / subscriptions.
Further Problem Description
Issue is rarely encountered and will happen randomly.