Unreal Engine Issues

Out-of-Bounds Access During Partial Updates of ISMC Per-Instance Custom Data

When using instance custom data values, removing an instance and changing the number of custom data floats in sequence can cause an array-out-of-bounds crash. The underlying arrays are not resized ...

Sprite sheets cannot be reimported in 4.8 in a project that was converted from an older version

User bug report: Why do you guys remove the Json Importer from UE 4.8? All atlases from TexturePacker can not be imported anymore on our projects. Is there a way to activate it? or maybe is there a ...

Crash in GetScreenRect on OPPO and Vivo devices

HLSLCC crashed on parsing UAV related instruction

1.glsl_type with image was not fully inited with HlslName field set, causing the crash 2.seems many types of op are not support by current hlslcc, cause error msg. e.g. RWTexture2D.Load[Image Remo ...

Character Mesh Position Offset in Online Sessions

If a client joins a session while the host is moving their character, the character's mesh will become offset on the client. Example Video: [Link Removed] Found in 4.16.1 and reproduced in 4.17 M ...

Vignette in stereoscopic looks incorrect, entire frame as opposed to each eye

Vignette seems to be being applied to the entire frame instead of each eye in stereoscopic, creating a really strange effect in your peripherals when viewed through a HMD. Can also see this effect i ...

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 ...

CrossCompileTool module fails to build due to missing include

The include for VulkanConfiguration.h was added to VulkanBackend.h, which is one of the external dependencies for the CrossCompileTool. This include is not complete however. This results in this mod ...

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 ...

Alembic Hair Doesn't Render In Both Eyes In VR

Alembic hair doesn't render in the right eye in VR. A demonstration project can be found [Link Removed]. NOTE: The hair is rendered as an overlay in other editor previews (skeletal mesh, Physics). ...