Timer significantly lowers FPS as compared to tick running the same function

UE - Gameplay - May 1, 2015

Timers set to a low time setting, but that are not set lower than tick, have a significant impact on FPS as compared to tick when updated a large number of objects at the same time. ...

Open Level opens previous level in Launch mode

Open Level does not properly work in Launch Game. Instead of streaming the intended level, it streams the previous level. ...

Character BP yaw rotates at different speeds when played in Standalone vs. Selected Viewport

UE - Gameplay - Mar 12, 2015

When you have a character in a level and if you setup the blueprint of the character as shown below, the rotation of the character will differ when played Standalone vs Selected Viewport. Photo of ...

Details panel is very slow when there are many items in an editable array (even if hidden) (was Tile Selection Lag within Tile Set Editor)

Tools - Jun 22, 2015

Selecting tiles within the Tile Sheet Editor becomes laggy after changing the size and spacing of the tile set. ...

Enabling Tessellation on Materials in 4.11 causes geometry to Disappear

UE - Graphics Features - Dec 23, 2015

Any material that already exists in 4.11p1, with tessellation enabled, causes assigned geometry to disappear. Any material created within 4.11p1, with tessellation enabled and a base color, causes t ...

Set Actor Location and Teleport from a Character when touching an Actor simulating physics will launch the Actor

UE - Gameplay - Jul 23, 2015

Set Actor Location and Teleport from a Character when touching an Actor simulating physics will launch the Actor. User supplied a video demonstrating the problem: [Link Removed] Test project in Pa ...

BoxCollision component must be simulating physics in order for collision and hit events to work

UE - Simulation - Physics - Jan 30, 2015

BoxCollision component must be simulating physics in order for collision and hit events to work. Note: This testbed doesn't contain print outs of the hit events due to an existing bug with adding e ...

Landscape Grasstype warning causes log spam when landscape is streamed in or out

UE - LD & Modeling - Terrain - Landscape - Nov 16, 2016

Using the Landscape Grasstype will generate log spam for the number of Landscape components being used or if using World Composition will generate a log warning for each tile used. The warning ind ...

Zooming with mouse wheel causes camera to jerk if zooming while the camera sets in a function

UE - Gameplay - Blueprint - Jul 31, 2015

If a collapsed or new function is opened and the mouse wheel scrolled to zoom the viewport camera in or out while setting in the new function, it will continuously jerk back to the original position ...

Player Capsule angular velocity can launch a player when stepping on/off a physics simulated object

UE - Simulation - Physics - Destruction - Mar 24, 2015

Occasionally the player capsule can be launched due to bImpartBaseAngularVelocity being enabled in the CharacterMovementComponent. Disabling this does not result in the character capsule being launc ...