Detour Crowd does crash after adding a new bot in editor

Oh by the way. Now i addet a bot, klicked on save level and the editor crashed instantly on the saving process with this message.

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0x00000000

UE4Editor_AIModule!UCrowdManager::PrepareAgentStep() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\AIModule\Private\Navigation\CrowdManager.cpp:762]
UE4Editor_AIModule!UCrowdManager::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\AIModule\Private\Navigation\CrowdManager.cpp:237]
UE4Editor_NavigationSystem!UNavigationSystemV1::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\NavigationSystem\Private\NavigationSystem.cpp:998]
UE4Editor_Engine!UWorld::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:1492]
UE4Editor_UnrealEd!UEditorEngine::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1515]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:414]
UE4Editor!FEngineLoop::Tick() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4850]
UE4Editor!GuardedMain() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:169]
UE4Editor!GuardedMainWrapper() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
UE4Editor!WinMain() [D:\Build++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268]
UE4Editor!__scrt_common_main_seh() [d:\agent_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

Should i register the agent in the begin play function of my character class instead of the constructor?
Seems like that something is messed up.