UMG Open Level crash

Hello,

I have been using UMG to create a menu system to host and join games, however it crashes whenever i try and use it. I have made a menu system before (without UMG) and it works fine. I have found another post that had the same issue and fixed it, however the solution wasn’t clear.[link][1]

[2014.09.03-17.08.40:730][ 73]LogMemory: 34880K allocated in pools (with 2536K slack and 1917K waste). Efficiency 94.50%
[2014.09.03-17.08.40:730][ 73]LogMemory: Allocations 143424 Current / 1572987 Total (in 545 pools)
[2014.09.03-17.08.40:730][ 73]LogMemory: 
[2014.09.03-17.08.40:731][ 73]LogLoad: World /Game/Maps/openmaptest.openmaptest not cleaned up by garbage collection! 
[2014.09.03-17.08.40:731][ 73]LogReferenceChain: Searching referencers for openmaptest. This may take several minutes.
[2014.09.03-17.08.40:771][ 73]LogReferenceChain: Generating reference graph ...
[2014.09.03-17.08.40:773][ 73]LogReferenceChain: Level 0 has 7 nodes ...
[2014.09.03-17.08.40:775][ 73]LogReferenceChain: Level 1 added 18 nodes ...
[2014.09.03-17.08.40:776][ 73]LogReferenceChain: Level 2 added 26 nodes ...
[2014.09.03-17.08.40:778][ 73]LogReferenceChain: Level 3 added 7 nodes ...
[2014.09.03-17.08.40:780][ 73]LogReferenceChain: Level 4 added 4 nodes ...
[2014.09.03-17.08.40:782][ 73]LogReferenceChain: Level 5 added 10 nodes ...
[2014.09.03-17.08.40:783][ 73]LogReferenceChain: Level 6 added 4 nodes ...
[2014.09.03-17.08.40:785][ 73]LogReferenceChain: Level 7 added 0 nodes ...
[2014.09.03-17.08.40:785][ 73]LogReferenceChain: Generating reference chains ...
[2014.09.03-17.08.40:785][ 73]LogReferenceChain:   
[2014.09.03-17.08.40:785][ 73]LogReferenceChain: External Referencers:
[2014.09.03-17.08.40:785][ 73]LogReferenceChain:   
[2014.09.03-17.08.40:819][ 73]LogReferenceChain: (root) GCObjectReferencer /Engine/Transient.GCObjectReferencer_0->
[2014.09.03-17.08.40:819][ 73]LogReferenceChain:   UMGTest_C /Game/Maps/openmaptest.openmaptest:PersistentLevel.BP_MenuController_C_0.UMGTest_C_0->Property
[2014.09.03-17.08.40:819][ 73]LogReferenceChain:     (PendingKill) BP_MenuController_C /Game/Maps/openmaptest.openmaptest:PersistentLevel.BP_MenuController_C_0->Property
[2014.09.03-17.08.40:819][ 73]LogReferenceChain:       Level /Game/Maps/openmaptest.openmaptest:PersistentLevel->OwningWorld
[2014.09.03-17.08.40:819][ 73]LogReferenceChain:         (target) World /Game/Maps/openmaptest.openmaptest
[2014.09.03-17.08.40:875][ 73]LogLoad:    (Object is not currently rooted)

[2014.09.03-17.08.40:876][ 73]LogWindows:Error: appError called: World /Game/Maps/openmaptest.openmaptest not cleaned up by garbage collection!
   (Object is not currently rooted)

[2014.09.03-17.08.40:876][ 73]LogWindows:Error: Windows GetLastError: Attempt to access invalid address. (487)
[2014.09.03-17.08.41:022][ 73]LogWindows: Could not start CrashReportClient.exe
[2014.09.03-17.08.41:022][ 73]LogMemory: Platform Memory Stats for WindowsNoEditor
[2014.09.03-17.08.41:022][ 73]LogMemory: Process Physical Memory: 135.16 MB used, 143.68 MB peak
[2014.09.03-17.08.41:022][ 73]LogMemory: Process Virtual Memory: 120.76 MB used, 138.34 MB peak
[2014.09.03-17.08.41:022][ 73]LogMemory: Physical Memory: 4250.20 MB used, 16328.22 MB total
[2014.09.03-17.08.41:022][ 73]LogMemory: Virtual Memory: 420.41 MB used, 8388608.00 MB total
[2014.09.03-17.11.01:302][ 73]LogWindows: === Critical error: ===


[2014.09.03-17.11.01:302][ 73]LogWindows: World /Game/Maps/openmaptest.openmaptest not cleaned up by garbage collection!
   (Object is not currently rooted)

Address = 0xfdd6940d (filename not found) [in C:\WINDOWS\system32\KERNELBASE.dll]
Address = 0x3f79349c (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x3f629b1f (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x407d41e9 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x407b9b48 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x40788cd1 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x407d12c5 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x40a0dc1a (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x3f510587 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x3f506e7c (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x3f506eca (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x3f5119e9 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x418287a5 (filename not found) [in C:\Users\RennF\Documents\Unreal Projects\exports\WindowsNoEditor\EclipseGame\Binaries\Win64\EclipseGame.exe]
Address = 0x779e59ed (filename not found) [in C:\WINDOWS\system32\kernel32.dll]
Address = 0x77c1c541 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]
Address = 0x77c1c541 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]

[2014.09.03-17.11.01:374][ 73]LogExit: Executing StaticShutdownAfterError
[2014.09.03-17.11.01:381][ 73]LogWindows: FPlatformMisc::RequestExit(1)
[2014.09.03-17.11.01:381][ 73]Log file closed, 09/03/14 18:11:01

Got an answer here on the forums linky link