Float values are changed slightly in blueprints

UE - Editor - UI Systems - Slate - May 23, 2019

Some float values appear to be slightly altered when they are input into a float field in blueprints. For example 2.6 will be changed to 2.599999. Regression: This did not appear to occur in the 4 ...

Line trace fails to detect Destructible Mesh

UE - Simulation - Physics - Destruction - Jun 15, 2015

When using a line trace in the construction script so that objects can return a value destructible meshes will not return a hit. This does not affect use in game with PIE or Standalone game, but if ...

"NO ASYNC TICK" in Cascade viewport when adding a Skel Vert/Surf Location

UE - Niagara - Nov 7, 2019

Adding a Skel Vert/Surf Location node to a Particle Effect causes it to stop displaying particles and throws the warning "No Async Tick". Toggling Skel Vert/Surf Location off allows the Particle to ...

Attempting to connect to Perforce source control causes a crash

Tools - Oct 16, 2015

Selecting Perforce from the list of source control options will cause the editor to crash. Crash Reporter [Link Removed] May also be the same as: [Link Removed] REGRESSION? Yes. Issue did not occ ...

Crash when Scrubbing Matinee Slider with Sound Wave using Subtitles

Tools - Jun 11, 2015

A crash occurs when scrubbing the matinee slider with a 'Sound Wave' that has 'Subtitles' enabled. You need to enable 'Subtitles' within the settings of the asset. Tested issue in 4.7.6 and did no ...

Setting an overlay's alpha to 0 does not display as fully transparent

Tools - Feb 19, 2020

Safe zone overlay ignores alpha when set to 0.0 in DefaultEngine.ini. Tested:  4.23.1 CL#9631420 , 4.25 CL#11341939 ...

Blueprint Interface Implemented and Inherited Interface naming is reversed

UE - Gameplay - Blueprint Editor - Nov 4, 2022

Naming for Inherited Interfaces and Implemented Interfaces is reversed in 5.1 and Main. Inherited interfaces act like implemented interfaces, and inherited interfaces appear listed under Implemented ...

Virtual Joystick inactive opacity ignored when Prevent Recenter is on

UE - Platform - Mobile - Nov 30, 2016

Using a touch interface with Prevent Recenter set to true prevents the joysticks from fading to their Inactive Opacity setting. Regression?: No This also occurred in 4.13.1 ...

Child actor components cannot be individually selected in viewport

UE - Gameplay - Blueprint - May 28, 2015

If a child actor component is placed in a blueprint, that child actor component cannot be individually selected in viewport or scene outliner. ...

Mac Crashing on Editor Launch

UE - Graphics Features - Sep 24, 2015

User reporting he is crashing when launching the Editor "This is a 4.9.1 binary build (latest), I can't give you the exact version because it crashes on the initialisation stage at 0%. The system i ...