Unreal Engine Issues

Popping Ribbon UVs

Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...

Ensure caused by edits to nested structs

Edits made to a struct that is a member of another struct can cause the parent struct to no longer compile and cause save errors. ...

Child blueprint reference to self node unpins after close and reopen from Set Array Element node

If a child blueprint attempts to set an array element of self to an array of the parent blueprint, then the editor is saved, closed, reopened, the self pin will disconnect from the Set Array Element ...

Engine Crashes when saving a project to disk space is full

I ran out of space in my D drive and my project autosaved and received the attached error message This is NOT a regression ...

AllowCommandletRendering D3D12 device crash

Leaving engine open for an extremely long time builds up memory usage, eventually crashing upon any activity

Edit MattK: Not reproducible yet If the editor is open and used for a long period of time without being closed, it stores memory use. After building up a significant amount of resources building us ...

New blueprints do not Alphabetize themselves as expected

When making new blueprints they are not placed within the content browser as a user would expect. In the example given in the link provided, blueprints ending in "_1" will come before "_10", however ...

UMG widgets with instanced properties reset those properties to default on compilation

This is perhaps a misuse of Instanced properties but the repro info is good so I thought I'd better add it to Jira. See Additional Info URL for details. Checked and happening on: //UE4/Main CL-2884 ...

Import Threashold Time setting ignores decimal entries

Import Threshold Time setting in Editor Preferences does not accept values with a leading decimal point (.25 vs 0.25). UEditorLoadingSavingSettings::AutoReimportThreshold in EditorLoadingSavingSett ...

Using FEditorModeID for the "Mode" console command does not switch the modes tab

Using the FEditorModeID for the different editor modes does not affect actual modes available in editor Modes tab. Example: Command "Mode EM_Foliage" does not switch to the foliage mode Workaround ...