Unreal Engine Issues
Unreal Engine Issues
Packaged projects on Windows and Mac are not opening as windowed fullscreen
Tools - Nov 16, 2016When you package a project on Windows or Mac, the project is then opened in windowed mode instead of windowed fullscreen. Regression: Works in 4.12.5-3039270 Does not work in 4.13.2-3172292 Does no ...
Reimporting a static mesh will cause some values to be reset back to defaults
Tools - Jul 5, 2017Reimporting a static mesh will cause some Static Mesh Editor values to be reset back to defaults. This was reported as JIRA UE-22205 back in 4.10 and was marked fix in 4.12. However, I wasn't able ...
Renaming native struct with redirect can break user defined structs
UE - Gameplay - Blueprint - Jul 18, 2018From https://udn.unrealengine.com/questions/444690/redirecting-ustruct-used-as-member-of-userdefineds.html In 4.20 it was changed so soft object ptrs pointing to classes work correclty with +ClassR ...
Selecting multiple actors with differing DataTableHandles causes data loss
UE - Gameplay - Jan 4, 2021The data table customization (and probably others) tries to aggressively clear out row references that are not valid in the table they point to. This breaks when selecting multiple actors or objects ...
Pressed event triggered after calling FlushPressedKeys while holding the button
UE - Gameplay - Input - Oct 2, 2024This is an issue related to the behavior of the FlushPressedKeys function when called manually while a button is held. Once the function is called in C++, a Pressed event gets triggered even though ...
In -game in Editor, if streaming-in a LevelInstance and initialize its world partition, then leaving that cell and make it go outside the streaming grid, to re-enter it again, will trigger a check(!StreamingPolicy) if no GC has happened during that time.
UE - World Creation - Worldbuilding Tools - World Partition - Jan 27, 2025This crash can be fixed by adding a couple of || IsRunningGame() like it is done here: FGenerateStreamingContext Context = FGenerateStreamingContext() .SetLevelPackagesToGenerate((bIsPIE ...
Post Process AnimBP is no longer initialized in Persona Viewport
OLD - Anim - Jul 20, 2017Post Process AnimBPs used to be processed in the persona viewport. This could have been intentional. Occurs on? 4.14 - 3249277 - NO 4.15 - 3450819 - YES 4.16 - 3466753 - YES 4.17 - 3545186 - YES ...
Camera attached to a Spring Arm jitters when put at a +90 or -90 degree angle on the Y axis.
UE - Gameplay - Nov 18, 2016When a camera attached to a spring arm is turned at a +90 or -90 degree angle in the Y Axis (can't go any further) and turned, it can jitter and cause visual issues. Note: This occurs in the base ...
Shadow Quality regression on mobile for Movable Directional Lights
UE - Platform - Mobile - Oct 11, 2016Shadow quality from a movable directional light has lower resolution quality than the previous release of the engine. This is a regression in quality from 4.12.5 to 4.13. Tested with: Good Quality ...
MediaFramework movies not playing properly in Shipping
Media Framework - Nov 7, 2017`check(Samples.Pop());` this kind of `Pop()` inside of a `check()` is in a few places in MediaSampleQueue.h and MediaSamples.cpp but `check()` expands to nothing in Shipping/Test, so, required work ...