Engine crashing when opening folder

Development Programming & Scripting UI
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1

When I open the Content > Widgets > Items folder where are some of my User Blueprint Widgets the engine crashes, has anyone faced this same issue before?

I’m running the version 5.3.2

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Assertion failed: ListEntryWidget [File:D:\build++UE5\Sync\Engine\Source\Runtime\UMG\Public\Components\ListViewBase.h] [Line: 600]

0x00007ffbb1d5e0bc UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1d38a1c UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1c2114f UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1c22900 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1d83204 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb3b795b2 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3364f9f UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3aea560 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3361ad1 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3aea374 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3361ad1 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb1e1e4a8 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3aeaab5 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3361ad1 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3aea374 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3aeaab5 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3361ad1 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb1e1e4a8 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb33666f2 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb33627ab UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb336266a UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3361ad1 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb3b64565 UnrealEditor-Slate.dll!UnknownFunction
0x00007ffbb3365925 UnrealEditor-SlateCore.dll!UnknownFunction
0x00007ffbb1e05844 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1e06038 UnrealEditor-UMG.dll!UnknownFunction
0x00007ffbb1e05eae UnrealEditor-UMG.dll!UnknownFunction
0x00007ffb8d4bf4a2 UnrealEditor-UMGEditor.dll!UnknownFunction
0x00007ffb8d4beb5b UnrealEditor-UMGEditor.dll!UnknownFunction
0x00007ffbaf53f19c UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbae7c6c97 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbae820fe1 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbae850e45 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbaee478ac UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbaee447e7 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ffbafa9ea06 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff648de8af2 UnrealEditor.exe!UnknownFunction
0x00007ff648e0d28c UnrealEditor.exe!UnknownFunction
0x00007ff648e0d37a UnrealEditor.exe!UnknownFunction
0x00007ff648e10854 UnrealEditor.exe!UnknownFunction
0x00007ff648e26984 UnrealEditor.exe!UnknownFunction
0x00007ff648e29d7a UnrealEditor.exe!UnknownFunction
0x00007ffc6e68257d KERNEL32.DLL!UnknownFunction

2

Seems like there are some error functions or perhaps corrupted functions.
It crashes because the engine can’t read it and causes chaos in the memory when attempting to load the corrupted files. My recommendation is to delete the particular blueprint class manually while the engine is closed (through Windows Explorer) and restore the file from your backup.

3

I end up updating the engine version (to 5.4) and it solved the problem. Also learned to commit for every small change so I can rollback without losing a ton of work :sweat_smile: