Unreal Engine Issues

Internal Compiler Error: Tried to create a property Crash in scope Beta_C, but another object (ObjectProperty /Game/Alpha.Alpha_C:Crash) already exists there.

After fixing the crash from [Link Removed] when compiling the child blueprint that has claimed the component name the parent was previously using without having compiled the parent, an internal comp ...

AimOffset and Blenspace graphs causing crash for some users

Users are experiencing crashes when using the AimOffset and Blendspace graphs. I am unable to reproduce this locally, but judging by the Bugg in crash reporter, this is not an isolated incident. [ ...

Crash after Compiling Shaders for Imported SpeedTree Assets with Default Settings

A crash occurs when importing any SpeedTree asset with the default import settings. The user reporting the issue says "the crash occurs if I have import WIND AND SMOOTH LOD checked like the default ...

Crash after Enabling Forward Shading on Mac and Creating/Editing Materials

A crash occurs after enabling 'Forward Shading' on Macs. The crash is triggered after creating a new material and attempting to modify that material. Regression? No, this crash also occurs in the 4 ...

Crash: Using Sequencer to attach an actor with multiple skeletal mesh components crashes the editor

When using an Attach track in sequencer to attach an actor that contains more than one skeletal mesh component, the UI to choose which mesh component to attach to pops up, but then the editor hangs ...

Crash report window does not open on GitHub source builds

When using a source build of 4.12, the crash report client window does not open even if Crash Report Client is manually built alongside the editor. UPDATE: Only affecting Source builds from Github. ...

Crash when importing an Alembic file with Materials if it already exists

Crash when importing the same Alembic file but as a different Asset Type

Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor

Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor. In 4.8, the editor crashes immediately upon changing that value, with no crash report. In 4.6 and 4.7 Pre ...

OculusBoundaryComponent crashes when no HMD connected

Editor crashes when Oculus boundary component is added without a HMD connected. This was discovered while researching a separate bug report. A user stated that on a project that had been upgraded f ...