Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff when quit game (in Play Mode)

Whenever I quit the game in Play Mode (either with the Bueprint Node: Quit Game, or the console command: quit) the Engine crashes.
Unfortunately, the same now happens with my backup-projects, that always worked flawlessly before, as well…
i get this error message:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

UnrealEditor_LidarPointCloudRuntime!FLidarPointCloudViewData::ComputeFromEditorViewportClient() [D:\build++UE5\Sync\Engine\Plugins\Enterprise\LidarPointCloud\Source\LidarPointCloudRuntime\Private\LidarPointCloudLODManager.cpp:157]
UnrealEditor_LidarPointCloudRuntime!FLidarPointCloudViewData::Compute() [D:\build++UE5\Sync\Engine\Plugins\Enterprise\LidarPointCloud\Source\LidarPointCloudRuntime\Private\LidarPointCloudLODManager.cpp:138]
UnrealEditor_LidarPointCloudRuntime!GetPointBudget() [D:\build++UE5\Sync\Engine\Plugins\Enterprise\LidarPointCloud\Source\LidarPointCloudRuntime\Private\LidarPointCloudLODManager.cpp:334]
UnrealEditor_LidarPointCloudRuntime!FLidarPointCloudLODManager::Tick() [D:\build++UE5\Sync\Engine\Plugins\Enterprise\LidarPointCloud\Source\LidarPointCloudRuntime\Private\LidarPointCloudLODManager.cpp:429]
UnrealEditor_Engine!FTickableGameObject::TickObjects() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\Tickable.cpp:153]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1830]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:474]
UnrealEditor!FEngineLoop::Tick() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5215]
UnrealEditor!GuardedMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:183]
UnrealEditor!GuardedMainWrapper() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:147]
UnrealEditor!LaunchWindowsStartup() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:283]
UnrealEditor!WinMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:330]
UnrealEditor!__scrt_common_main_seh() [d:\a01_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

anybody got a clue??
thanks in advance!