Crashing On Play

I have been working on Exp/Leveling system with Umg and i finished it but for some reason. The editor closes after i click play and gives me a crash report. Why is it doing this?. If you need to see my blueprint let me know.

MachineId:A8536B6448F9906FD16AE7B6C2533B44
EpicAccountId:6bc7170d05a445df934c978c439cfa8e

Access violation - code c0000005 (first/second chance not available)

Ensure condition failed: false [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Engine\Private\SceneComponent.cpp] [Line: 760] 
Template Mismatch during attachment. Attaching instanced component to template componen

UE4Editor_Engine + 6500582 bytes
UE4Editor_Engine + 5046435 bytes
UE4Editor_Engine + 9906019 bytes
UE4Editor_Engine + 3804899 bytes
UE4Editor_UnrealEd + 4271756 bytes
UE4Editor_UnrealEd + 4561611 bytes
UE4Editor_UnrealEd + 4660963 bytes
UE4Editor_UnrealEd + 1801811 bytes
UE4Editor_UnrealEd + 6686342 bytes
UE4Editor!FEngineLoop::Tick() + 3876 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2214]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

I thought this was a blueprint issue so i disabled the blueprint and it did not help i still crash on play for some reason. Can anyone tell me how to fix this.