Network Prediction plugin: improve behavior when switching net roles

UE - Gameplay - Apr 13, 2022

We need a mechanism to gracefully handle cases when an NP-simulated object changes net roles from autonomous to simulated, and vice versa. The most common case happens when a client player possesses ...

Restart Player at Transform leaves the character unpossessed, failing to restart the player.

UE - Gameplay - Apr 12, 2022

Restart Player at Transform inside of GameModeBase leaves the character unpossessed when called. Repro Rate: 4/4 Tested in //UE4/Release-4.27 @ CL#18319896 and the player character successfully re ...

GAS: Mixed replication mode and error in MinimalReplicationTags code

UE - Gameplay - Apr 6, 2022

We're on 4.25.4. We recently turned on mixed mode replication for GAS, which seems to work fine and reduce bandwidth as expected. However one of our unit tests started failing with this error messag ...

Network Prediction plugin: dispossessing a client pawn results in repeated sim input

UE - Gameplay - Apr 1, 2022

After dispossessing an NP-simulated pawn, it appears that the last frame of input is used for the continued simulation of the pawn.   For example, a client player may be holding down continuous inp ...

Error thrown when adding an action mapping to an Input Mapping Context object

UE - Gameplay - Mar 31, 2022

An error is thrown when adding an action mapping to an Input Mapping Context object. LogEditCondition: Error: EditCondition parsing failed: Field name "bIsPlayerBindable" was not found in class "En ...

Noticeable input delay at lower FPS while Playing in Editor

UE - Gameplay - Mar 1, 2022

If the editor is running at a lower fps there is very noticeable input delay that wasn't present in 4.27.2. Seems to work correctly while playing in Stand Alone or Packaged. To quote an engine u ...

Setting a float value with the meta tag "ExposeOnSpawn = true" on spawn doesn't retain the value

UE - Gameplay - Feb 25, 2022

Float values with the meta tag expose on spawn aren't retaining their value when the value is set with a Spawn Actor node. It appears to only be floats. Maybe it has something to do with the change ...

AttachComponentToComponent node does not change the location of a Spawned particle system at runtime

UE - Gameplay - Feb 17, 2022

You can use the "Spawn Emitter Attached" function as a work around ...

GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue

UE - Gameplay - Dec 10, 2021

Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...

The showdebug abilitysystem command crashes editor when the target is a child actor

UE - Gameplay - Dec 2, 2021

An actor with an AbilitySystemComponent that is spawned by a ChildActorComponent will have a null AbilityActorInfo. This leads to a crash in the ASC when GetDebugTarget attempts to access AbilityAct ...