Unreal Engine Issues

Text to Speech does not work in Play in Editor

This is not a regression as the TTS plugin isn't available in 4.27.2. Text to Speech does not work in Play in Editor, but does work in Stand Alone. A warning is thrown:LogSlateStyle: Warning: Unab ...

nDisplay Crash in DisplayClusterDeviceBase.cpp

Alt-tabbing out of a Standalone App or packaged version of a game does not trigger LostFocus or ReceiveFocus

If a user uses Alt-tab to change to another window, the ReceivedFocus and LostFocus functions are not called as they would usually be called when using something such as Shift+F1 or Ctrl+Esc. Note: ...

Blueprints not marked dirty when variables in referenced actors are renamed

Blueprints using renamed variable do not indicate that they need to be recompiled. (However errors are shown on play) It is possible to not see an error if you add a variable with the same name as ...

Crash when a subsystem calls GetSubsystemArray() on its owner while engine code is iterating on subsystems also obtained through GetSubsystemArray()

In some occasions, engine code iterates over a certain subsystem type by calling FSubsystemCollection::GetSubsystemArray() and then calling some method on all subsystems of the returned array. This ...

Crash on Importing specific Animation Only FBX

When importing the attached FBX file with only Animations, the editor will crash. The Same asset will import without error in 4.9.2 Crash Reporter BUGG: [Link Removed] ...

Crash when spawning destructible objects in 2 player PIE

Crash Reporter link: [Link Removed] With Source Context: [Link Removed] ...

Datasmith error when attempting to package - Error: Ensure condition failed: It->Value File:Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Private\DatasmithAssetUserData.cpp

Crash when Matinee with 2 Event Tracks stopped from one of the Event Tracks

When stopping a Matinee from an Event Track via the level blueprint, if you have 2 Event Tracks the editor will crash. Also Reproduced in Main Promotable-CL-2479729 ...

Editor crash when shader debugging enabled including r.shaders.optimize=0

The editor crashes when activating cvar options for shader compilation and debugging. ...