Unreal Engine Issues

Spectator Pawn cannot be added to level by dragging into viewport

Spectator Pawn cannot be added to level by dragging into viewport but can be added by using place actor in the level viewport. Regression: This issue occurs in 4.13.2, 4.14.3, and 4.15.1 of the Bin ...

//UE4/Main: Step 'Compile UE4Game Win64' - ComponentVisualizers Error

[Link Removed]ERROR: UEBuildBinary not set up for module ComponentVisualizers ...

Blueprint transformed in sequence does not update at runtime

Blueprint transformed in sequence does not update at runtime. You can see this when rendering out the first part of op_seq sequence or watching the sequence in PIE. ...

Blueprint function inputs can now be referenced as variables but renaming the inputs does not update the placed variable instances

Invalid array length error launching QAGame onto HTML5

Firefox 32-bit Version 52.0.1 This error also occurs in MainRangeError: invalid array length[Learn More] 0943e4e3-83fc-4463-accc-9fd15fd7df6c:157:9 processPackageData blob:http://localhost:53501 ...

Touches on windows generate 2 mouse events.

The problem is that windows supplies both a touch event and a mouse event for each touch. The engine then handles touches as mouse input so that UI elements can work correctly on touch platforms. ...

Editor crash when adding elements to blueprint Set/Map

Adding multiple element to TMap / TSet variable at once with a for loop causes the editor to lock up / crash (respectively). Regression: No - Map & Set variable types not available prior to 4.15 ...

Crash While Loading UTexture Data Inside PostLoad During Open Level

(User provided info) Crash (check fail critical error) if you try to load a UTexture's data (eg UpdateResource() or PlatformData .. Mip .. Lock/GetCopy) inside a PostLoad of anything during an Open ...

Ensure triggered when exiting PIE with dedicated server options

When "Use Single Process" and "Use Less CPU when in Background" are checked off, running a dedicated server in PIE will cause an ensure on exit Regression: Yes - Behavior does not occur in binary 4 ...

Assert message in TArray::CheckAddress is not appropriate for all situations

The assert message in CheckAddress is as follows:"Attempting to add a container element (%p) which already comes from the container (%p, ArrayMax: %d, ArrayNum: %d, SizeofElement: %d)!" This assert ...