Unreal Engine Issues

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 ...

[CrashReport] Crash can occur when applying Apex cloth to a Material slot

No known crash with users I had been in contact with on the latest PhysX plugin for 3dxMax or Maya. I've had a few posts dealing with using Apex and assigning cloth assets with no crashing so I feel ...

material editor: Auto variable name generation bug

If you create a parameter collection node in a material and select a parameter from the drop down and then copy and paste that node a _1 will be appended to the end of the parameter collection varia ...

Post increment operator is not overridden for data structure iteration

Attempting to use a post increment operator in a TMap or TSet iterator will fail to compile with error shown in callstack field. This is due to the post-increment operator not being overridden in M ...