Unreal Engine Issues

Crash when splitting up output of collapsed node

A crash occurs when splitting the pin of a collapsed vector node that was connected via a vector connection. This issue is very similar to [Link Removed] however, the callstacks are different so I ...

MAC: Very slow texture compression times in Editor

There have been a number of complaints about the time it takes to build projects on the Mac - the consistent theme as in the additional URL - is that the editor is thrashing compressing textures. It ...

Deriving a class from UBlackboardData results in runtime check failures

It needs to be either supported, or UBlackboardData should not show up in lists of valid parent classes. I'm not sure the latter is possible at all, so we should at least patch it up so that that ru ...

Audio device hot swap fails for extreme audio device ranges

[CrashReport] Linux crash - FVulkanCommandBufferManager::WaitForCmdBuffer

This is a semi-common Linux crash coming out of 4.17.1. It is spread among a few different similar callstack affecting a handful of users. [Link Removed] [Link Removed] [Link Removed] [Link Removed ...

Function boolean return nodes often set to true will default to false once saved project is closed/reopened

The new function output booleans within blueprint class actors are not saving intended true/false entries. This issue is a regression. Works in: 4.16.3-3561208 Does not work in: 4.17.1-3586342 and ...

ARCore failing to package

Users reporting packaging issues with ARCore plugin enabled in 4.18 preview #1 and #2: https://answers.unrealengine.com/questions/709840/418-android-packaging-fails-with-arcore-plugin-ena.html ...

Spawned Actors do not appear in World Outliner

Spawning actors from a Blueprint via the SpawnActorFromClass function at runtime does not cause the World Outliner to update. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 64 ...

Draw to Render Target Android Regression

Regression in Draw Material to Render Target functionality. Enabling Mobile HDR is a workaround. Android tested with Note 4 Unable to verify Main CL 6395234 (Crash on Phone) No repro on iOS mo ...

Notify selection in Persona breaks with custom windows display scaling

The notify panel in the animation editor doesn't currently support windows display scaling. If the user changes the display scale to something like 150% then selection of notifies is inaccurate. T ...