Unreal Engine Issues

Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor

The important step here is to unlink the middle layer after first relinking everything. ...

Spot Lights are not using Light Propagation Volumes when enabled

As of 4.9 Dynamic Indirect Lighting with Light Propagation Volumes should be supported for Spot Lights. This does not appear to be the case for several versions that I could see. Using the methods o ...

Material Quality Level not working with Layers

"Consume pointer input" on Common User Widget does not work on iOS, FReply::Handled not respected

From a UDN, they also mentioned:  Update: I added CommonUI to the test project to try the "Consume pointer input" setting. It behaves the same way as our custom input blocking widget in that the in ...

Distance Field AO leaving trail of occlusion shadow where character mesh has been.

When using DFAO and moving around the world a trail will be left behind the where the player has been while PIE/Standalone game is being used. This is cleared when exiting these modes. **Video att ...

Material re-route nodes break TextureSample output

This is a bug found by a licensee ...

Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes

Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the preview window did g ...

Assertion failed: GEditor->GetSelectedActorCount() == 1 in FLevelEditorActionCallbacks::Paste_CanExecute

This is a high frequency crash occurring for our users. It appears to be the same crash reported in [Link Removed], however that was fixed in 4.15.0, and the specific repro steps are verified to no ...

Changing VectorParam channel names in Material Layer do not propagate to Material Instances

Alpha Textures reimported via overwriting disappear from level

When you reimport a texture that has an alpha by Importing and then overwriting the previous texture, all versions of that texture in any material or in the level complete disappear until you compil ...