Ahh i see.
But if im trying to create a prefab with more meshes like 100 - 200 for modular buildings for example, the engine always crashes.
I made a video, so you can follow my actions. The volume that i spawned is only for fast selection. You can ignore it.
Here is so crash log:
LoginId:c5a5fb434e4d10c904fef2bcc815aa64
EpicAccountId:35ce0abcb0274b4f943091be4f5326c7
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000010
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectDataInterface
UnrealEditor_SubobjectEditor
UnrealEditor_Kismet
UnrealEditor_Kismet
UnrealEditor_Kismet
UnrealEditor_Engine
UnrealEditor_Kismet
UnrealEditor_Kismet
UnrealEditor_UnrealEd
UnrealEditor_rdBPtools!rdBPclass::CreateFromActorList() [D:\build\U5M-Marketplace\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\rdBPtools\Source\rdBPtools\Private\rdBP_CreateFromSelectedActors.cpp:304]
UnrealEditor_rdBPtools!rdBPclass::CreateFromSelectedActors() [D:\build\U5M-Marketplace\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\rdBPtools\Source\rdBPtools\Private\rdBP_CreateFromSelectedActors.cpp:42]
UnrealEditor_rdBPtools!TBaseRawMethodDelegateInstance<0,FrdBPTools,void __cdecl(void),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\RocketSync\5.2.0-25360045+++UE5+Release-5.2\Working\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:424]
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll