Unreal Engine Issues

Cascade Alpha Over Life Module Doesn't Interpolate Vaules That Differ in .05 or Less With "Can Be Baked" Enabled

Alpha over life module doesn't interpolate vaules that differ in .05 or less with "Can Be Baked" enabled. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4291146 ...

Updating a material layer may not update materials that are using that material layer instance

Material layer instances do not generate a valid UMaterialFunctionInterface::StateId. For this reason, materials and material instances that use material layer instances will not recompile their sh ...

FXAA doesn't work if you replace the tonemapper with a material postprocess

As reported on UDN. If using a custom postprocess which replaces the tonemapper, FXAA doesn't work. ...

Sequencer UpdateTimeCursorPosition can set TimeCursorPosition beyond the end of the track when stopping

After calling Stop() in UpdateTimeCursorPosition (LevelSequencePlayer.cpp:392), we continue on to set TimeCursorPosition to NewPosition. At this point, NewPosition is beyond the end of the track. A ...

Evaluate ClampedPow material function

ClampedPow seems to have been added as a way to tackle common compile warnings and edge cases (particularly NaNs), but the code shouldn't be calling both an abs() then a max(). This causes negative ...

Missing Service Node warning when opening project

Services in the Behavior Tree sometimes don't work when the project is first loaded. The Behavior Tree will print a "missing service node" warning and the BT will remain inactive. This was reported ...

Contact Offset no longer appears to have an effect

When modifying the contact offset in a project it appears to have no effect. The setting that worked in a previous engine version (4.19) now collide in the same way as the default settings. ...

Preview Rendering Level Android Vulkan will crash the editor in VR Template

IVideoRecordingSystem::EnableRecording call on Windows shifts viewport drawing position

The viewport is shifted by the IVideoRecordingSystem::SetRecording call. This problem occurs in play standalone mode and packaged build running as window mode. (not occur in fullscreen mode) The vie ...

DTLS Handler Component module cannot startup on Xbox

It seems as though enabling the DTLS handler component no longer functions on Xbox, and it's possible enabling this packet handler no longer works on other platforms as well. It may also be worth in ...