Unreal Engine Issues

Scalar Parameter versus Constant placed in Alpha of LERP produces inconsistent results in Blendable

When placing a Scalar Parameter into the Alpha position of a LERP you will not get the same results as placing a Constant Value when used in a Post Process Material. Constant Value of 0: [Image Rem ...

Opening Gameplay Debugger while in PIE removes print string output from screen in subsequent PIE modes

If a user opens gameplay debugger ( ' pressed while in PIE), all print string outputs to screen disappear, and will no longer appear during any PIE session until editor is closed and re-opened. Wo ...

Landscape UI Elements are not visible

Per conversation between Gareth and Mike, it was determined the Landscape tool is in Game Mode by default. Within the Landscape Tool, all UI elements are disabled by default. This has been observed ...

Second controller does not receive input if connected after editor launches

If the editor is launched and PIE is started with no controllers attached, attached two controllers with allow Player1 to receive input from the first controller but Player2 does not receive input f ...

Hot reloading changes to a struct causes data table assets to break

If a data table asset is based on a custom struct, making changes to and hot reloading the struct will not update the data table in the editor. Restarting the editor will prevent the data table fro ...

[CrashReport] UE4Editor_MaterialEditor!FMaterialEditor::OnCanPromoteToParameter()

This is a common crash in the 4.16 release. It seems related to creating a parameter in the Material Editor, however users have not provided any descriptions so additional information is not current ...

Copy/pasting component results in broken duplicate component (named _GEN_VARIABLE)

REGRESSION: Yes. Does not occur in 4.16.3 Using Copy/Paste to duplicate a component will result in a broken duplicate component. This doesn't occur if the user uses Ctrl+W to duplicate. On compi ...

[Rhino Import]-[Rhino Blocks]-Block is not assigned to any nested layer after reimporting

FObjectReplicator::ValidateAgainstState may validate against the wrong buffers

In 4.14, changes were introduced to share replicated state between objects on the server (Shadow State) this was done to allow sharing property comparisons to determine when objects needed to replic ...

Wrong grouping separators are displayed when the Mac OS has been set to the German-Germany language and locale

When converting a numerical value to text with grouping enabled, the grouping character that is used is not properly localized on a Mac. By default, the grouping character that is used when in the e ...