Unreal Engine Issues

"Pass-By-Reference" inputs to a multicast RPC can crash

Passing a parameter by reference for an RPC does not seem to be a supported operation, and UnrealHeaderTool will already throw an error if a networked UFUNCTION includes any OutParms. However, users ...

Decal of Emissive is not displayed on thumbnail.

Inaccurate Panning on Tap Delay Submix

The panning in the Tap Delay Submix Effect does not always match its assigned Pan in Degrees value. Specifically, the left and right side appear to be reversed on Stereo setups. In addition, in 5.1 ...

When rendering a reflection capture, the lightmap may be rendered without finishing streaming.

This problem occurs when you do a lighting build. It does not occur when the reflection capture is done by itself. ...

Bringing up the integrated virtual keyboard on iOS 15 devices causes a crash

When CascadeToNiagara, the Disable state of Emitter is not converted properly.

In CascadeToNiagaraConverter.py # copy the emitter enabled state. enabled = ue_fx_utils.get_lod_level_is_enabled(cascade_emitter_lod) niagara_emitter_context.set_enabled(enabled) It stores the ...

Jittering appears when setting DOF in ES3.1

For reference, it was fine in 4.24 In particular, jittering is severe when the camera is moving. GaussianHalfRes has been removed in CL 14036168, which is likely to cause degradation issues if int ...

Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale

The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...

Bool input pins connected to boolean logic nodes can fail to compile

Bool input pins will fail to compile when connected to a boolean logic node and the node also has a float input pin that is currently connected. Compilation will fail with the error Default value ' ...

AbsoluteWorldPosition and PDO not working correctly in SingleLayerWater calculations

The licensee has provided a recommended fix for this issue. Please see the UDN.  ...