Unreal Engine Issues
Unreal Engine Issues
Actor Component properties can become "linked" across multiple Blueprints after a hot reload
UE - Gameplay - Components - Dec 3, 2018If code in an Actor Component class is changed (eg. a new UPROPERTY is added) and a hot reload is performed to implement the changes, the properties in the component can become linked across any Blu ...
State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing
UE - Anim - Gameplay - Aug 28, 2019State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing at the moment you enter/leave the state. ...
Linked animation graph doesn't trigger anim notifications on dedicated server.
OLD - Anim - Jun 15, 2020Linked animation graph doesn't trigger anim notifications on dedicated server. There is no expected message in log: LogBlueprintUserMessages: [HitReact_AnimBP_C_0] Client 0: HitNotify IsServer: tru ...
Crash: nullptr in FindViewComponentForActor when ActorComponent is attached to Character with Camera Component.
UE - Gameplay - May 17, 2019Selecting an Actor with a Camera and a C++ inherited Blueprint Component that has sub-components,then compiling the BP component leads to a crash. Upon Debugging the Crash Call Stack: FindViewComp ...
Maximum number of State Machine connections?
OLD - Anim - Mar 16, 2015Adding more than 8 connections to or from a state in the state machine results in unpredictable behavior, like causing an animation to fail. (See image.) Was able to reproduce with user's test file ...
UDN 472564 - CurlHttp merges headers on redirect
UE - Online - Dec 7, 2018when curl requests are redirected (301) – response headers are merged together and are comma separated. but, Content-Type headers are required to use semi-colon ";" separators. ...
Get Mouse Position Blueprint node returns different values outside of viewport depending on whether it was called from Event Tick, or within an Actor function
UE - Gameplay - Nov 15, 2018There seems to be a discrepancy between the output of Get Mouse Position node depending on whether the node is inside an Actor function or called from Event Tick. If the node is present inside a fun ...
[MRQ] Deleting all jobs after rendering queue with executor causes an assertion to fail.
UE - Anim - Sequencer - MRQ - Apr 18, 2022Deleting all jobs after rendering queue with executor causes an assertion to fail. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 by utilizing a For Each Loop and Delete Job node ...
Hot Reload does not update blueprint pins
UE - Gameplay - Blueprint - Jan 15, 2015When changing the variable type or return type of a function in code and hot reload in the editor, blueprints that use the variable/function do not have their pins updated until the editor is closed ...
iOS Shipping Build using std::thread crashes on launch
UE - Platform - Mobile - Jun 2, 2017A user is reporting that using the following code in a GameMode class causes shipping iOS packages to crash on launch:void ANOGSSDKGameModeBase::StartPlay() { std::thread([](){ std::clog << "THRE ...