Unreal Engine Issues

Replacing a UI widget element and then undoing it causes the Widget Blueprint's UI elements to be deleted on editor restart

When using the Replace With option and then undoing it, upon engine restart the Widget Blueprint's UI components are all removed from the Widget Blueprint. It seems the undo is crucial to the issue, ...

Landscape can be added as a source in take recorder

Landscapes should not be able to be animated in sequences, and should not appear as options for sources in take recorder.  ...

Adding a widget to a grid panel inside the grid panel tick can cause an out-of-bounds error

This is caused by adding an item to a grid panel inside the grid panel iteration loop. The same operation to canvas panel goes well without any errors. The difference is that the array iteration in ...

BuildPatchTool doesn't finish if enabled building Http Chunk on Mac

We may fix this issue by the following codes. FPakPlatformFile::FPakPlatformFile(): LowerLevel(NULL) ,bSigned(false) { // remove //FCoreDelegates::GetRegisterEncryptionKeyMulticas ...

InitSDL() failed error when launching onto Linux

When launching onto Linux, the launch on fails Also tried launching on with QA-Promotion, still failed with same error, ruling out water ...

Attach track in the Audio track of Level Sequence becomes Unresolved Binding when the Editor is restarted.

It looks like the Actor's Binding information has not been saved successfully. ...

Crash when setting Retainerbox scale is set to 0 at runtime

Crash at runtime when Retainerbox scale is set to 0. The call stack indicates that the size of RenderTarget2D is set to 0. Attached repro project sets the scale of the RetainerBox that wraps the Im ...

Toggle Pose Watch in AnimBP not working with Root Motion from Everything

Combobox navigation does not work consistently

Navigation on combo box widgets will sometimes fail until the combo box close button is pressed, despite it not being open. This appears to be related to accessibility features added in CL# 13258546 ...

Sequence with null skeletal track sections crashes on load

Add contents of the zip file to your 4.26 project. Open the level sequence.  EXPECTED: It shoudln't crash. Log will print saying that it removed some animation sections. ...