Unreal Engine Issues

CPU benchmark value "inf" When using the console command "scalability auto"

When running the console command "scalability auto" on a packaged project, the benchmark for the CPU is returning "inf". Example logs [2017.11.09-14.35.50:583][ 92]LogConsoleResponse: Display: Cu ...

Crash occurs while clicking through the Landscape Overview Tutorial

Crash occurs while progressing through the Landscape Overview tutorial, after the step "After pressing the Create Button, your level should now have a Landscape Actor inside of it" This is a regres ...

Crash when removing or disabling an additive layer track in Persona

Editor is crashing when removing and Additive layer Track in persona. Editor also crashes if the curve is disabled rather than deleted. This is a regression from 4.13 ...

Particle memory can be corrupted leading to a crash

FlushPressedKeys doesn't clear EventAccumulators, resulting in stale data

From the user:  The root of the problem appears to be that KeyState.EventAccumulator still has events stored in the structure for 'LeftAlt'. So, although UPlayerInput::FlushInput is called when the ...

Crash when Applying Hole Material to Imported Tiled Landscape with World Composition

A crash occurs when importing a tiled landscape, via the 'Levels' window with World Composition enabled, and applying a material to the 'Hole Material' slot. You can also re-apply a default material ...

Using Alt+Click to break Transition node connections cannot be undone using the Undo command

Using Edit->Undo or Ctrl+Z has no affect after breaking using Alt+Click to break the connection of transition nodes. In the My Blueprint tab, extend Graphs->AnimGraph Regression: No - Same behavio ...

Impure Cast Nodes Can be Converted to Pure While the Blueprint Graph is Read-Only

Cast nodes can be converted to pure while the blueprint graph is in read-only mode, such as when you are debugging the blueprint. Found in 4.14.0 CL# 3195953. Reproduced in 4.13.2 CL# 3172292 and 4 ...

Local variables in Blueprint functions don't support default values of Custom Structs

I make a custom struct and assign default values to it's member floats, etc. When I use that in a Blueprint, the defaults work as expected. However, when I reference it as a local variable in a BP f ...

[CrashReport] UE4Editor_Engine!UGameViewportClient::Draw() [gameviewportclient.cpp:1170]

Was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 (first/seco ...