Unreal Engine Issues

Network Delay with RPC Functions/OnRep Properties

When attempting to call a RPC (NetMulticast, in this case) or use an OnRep_ Property, there seems to be a delay between setting the variable and it being replicated. In 4.15, this was around two t ...

Array of Instanced Objects on Component Does Not Propagate to Children Correctly

Attempting to add an entry to an array of instanced objects is not correctly displaying that entry in a child class based on that actor. It is expected that the inherited component in the child acto ...

Editor crashes when opening a project that includes a plugin with more than two custom Volume classes

Adding more than two custom Volume classes to a plugin results in any project that includes that plugin crashing when opening it in the Editor. There does not appear to be a problem with adding thre ...

Allow Window Resize has no effect on Linux

Checking the option for Allow Window Resize in Project Settings allows a the borders of a standalone window to be grabbed and used to resize the window. This does not behave the same on Linux and t ...

Disabling/Enabling Nav Link Proxies Causes UNavigationSystem::TestPathSync() to Always Return True

When using ANavLinkProxy::SetSmartLinkEnabled() to toggle a Smart Link, it will cause UNavigationTestPathSync() to always return true. ...

Checkboxes appearing with hidden EditCondition variables

When a public uproperty variable has the meta specifier EditCondition set to respond to a private boolean, a checkbox appears next to the public variable in blueprints. While the checkbox accurately ...

bLiveTexture is ignored in StereoLayerComponent of SteamVR

Workaround is to remove the call to GetStereoLayersDirty in FSteamVRHMD::UpdateLayerTextures() ...

Children of Retainer Box cannot be interacted with when visibility is set to "Self Hit Test Invisible"

When there is a Retainer box with the visibility set to "Self Hit Test Invisible" and has children, the children cannot be interacted with. Children such as a button cannot be clicked. This issue c ...

Sequencer Find in Content Browser shouldn't be bound to ctrl-b

Destructible mesh traces fail after switching collision response

User reported issue on UDN, steps above and project attached. ...