Crash occurs when debugging blueprints when in a networked editor session.
RESULT:
Crash will eventually occur.
UE4Editor_UnrealEd!UEditorEngine::CreatePIEGameInstance() playlevel.cpp:3338 UE4Editor_UnrealEd!UEditorEngine::SpawnIntraProcessPIEWorlds() playlevel.cpp:2579 UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() playlevel.cpp:2468 UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() playlevel.cpp:1145 UE4Editor_UnrealEd!UEditorEngine::Tick() editorengine.cpp:1310 UE4Editor_UnrealEd!UUnrealEdEngine::Tick() unrealedengine.cpp:371 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2859 UE4Editor!GuardedMain() launch.cpp:152 UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 UE4Editor!WinMain() launchwindows.cpp:202 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!<Unknown> ntdll!<Unknown>
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-37360 in the post.