opening widget BP crashes in 4.5

Development Programming & Scripting UI
, , , ,
1

I can’t open one that I’ve previously created or even make a new one.
As soon as I do UE4 crashes to desktop

I disconnected the only node that my game uses to access it, this doesn’t fix it

I tried opening it from within a brand new level. Still crashes

MachineId:6EA421D649E0D11A39782883F2223A1E
EpicAccountId:08ad758d2c8b4060889571fc3c48314d

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: IsValid() [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.5\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h] [Line: 658]

KERNELBASE + 37901 bytes
UE4Editor_Core + 3174836 bytes
UE4Editor_Core + 1677496 bytes
UE4Editor_Core + 1566850 bytes
UE4Editor_UMGEditor + 1091033 bytes
UE4Editor_UMGEditor + 1241968 bytes
UE4Editor_UnrealEd + 10641890 bytes
UE4Editor_UMGEditor + 637737 bytes
UE4Editor_ContentBrowser + 1736388 bytes
UE4Editor_ContentBrowser + 1255123 bytes
UE4Editor_ContentBrowser + 1294632 bytes
UE4Editor_ContentBrowser + 1784182 bytes
UE4Editor_ContentBrowser + 1227254 bytes
UE4Editor_ContentBrowser + 1286539 bytes
UE4Editor_ContentBrowser + 1276022 bytes
UE4Editor_ContentBrowser + 1869215 bytes
UE4Editor_ContentBrowser + 1784767 bytes
UE4Editor_Slate + 818133 bytes
UE4Editor_Slate + 754699 bytes
UE4Editor_Core + 2505980 bytes
UE4Editor_Core + 2450075 bytes
UE4Editor_Core + 2510857 bytes
UE4Editor_Core + 2438450 bytes
user32 + 105425 bytes
user32 + 104666 bytes
UE4Editor_Core + 3157702 bytes
UE4Editor!FEngineLoop::Tick() + 3106 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launchengineloop.cpp:2111]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launch.cpp:133]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

2

I have the same problem… I cant use UMG anymore. It crashes all the time. My new projects still ok, until I run the widget the first time, after this I cant edit the widget BPs anymore. The game preview still working.

3

I found a solution to this, it was basically deleting “temporary”
files from my project folder

someone else discovered this and I copied them and it worked. of course back up your project folder before you start and the “saved”
folder was one of three that I deleted and it fixed it. lost all my editor settings but at least can open UMG

4

It worked rodstone! Tank you.
I hope this doesnt happen all the time.