Unreal Engine Issues
Unreal Engine Issues
Source Control: Some Perforce operations do not use the specified P4Changelist argument
Tools - Sep 26, 2016While the engine currently supports a P4Changelist argument when launching the editor from the command line, we are only currently using it to check out assets through FPerforceCheckOutWorker::Execu ...
Lyra - Grant Nearby Interaction Ability Task used as source object but doesn't replicate
UE - Gameplay - Gameplay Ability System - Sep 25, 2023UAbilityTask_GrantNearbyInteraction passes itself as the source object when making the Interaction Ability Spec in UAbilityTask_GrantNearbyInteraction::QueryInteractables. This causes the "Warning: ...
Client and server can both get stuck waiting for packet sequence history flush
UE - Networking - Sep 4, 2025The issue occurs when both instances have a significant difference between their last sent and last ack'd sequence number, as they will begin waiting for the sequence history to be flushed for a pac ...
Save notification stays in lower left corner when editor is minimized
Tools - Apr 2, 2015A user has reported that the saving notification sticks on the desktop when the editor is minimized. When you maximize the editor, the saving notification does disappear.I have not been able to repr ...
Metal crash on iOS with Loading Screens
UE - Platform - Mobile - Sep 13, 2016When "Support Forward Rendering with Metal is set, packaged projects will crash on iOS device at splash screen This was tested on an iPhone 5S, asset #5065 ...
Blueprint compiler doesn't always initialize struct consts correctly
UE - Framework - Blueprint Compiler - May 1, 2025Blueprints currently don't support unsigned 64 bit ints, but they do support signed 64 bits. If a Blueprint uses a native struct variable that contains a uint64 property, it incorrectly assigns that ...
When using StringToBytes() it returns an incorrect value
UE - Foundation - Core - Jan 4, 2018When using the StringToBytes() function it returns one less byte due to the -1 at the end of the return. The function takes a string and converts it to bytes but it always returns one less byte than ...
Stat unit and the console render incorrectly on OSVR
UE - Platform - XR - May 6, 2016Found on: //UE4/Dev-VR CL-2967563 Both the console and stat unit numbers render incorrectly, their positions in each eye do not line up correctly, causing you to 'see double'. ...
Entering nine or more digits into a numerical field will change the value upon confirmation
Tools - Sep 9, 2016If a value with nine or more digits is entered into a numerical field the number the last few digits will be converted to another number upon accepting input. This happens in blueprints as well as ...
No deprecation message with component bound event nodes
UE - Framework - Blueprint Editor - Aug 21, 2023It appears that only custom event nodes support a deprecation message. In fact, we need all nodes that use delegates in some fashion to support a custom deprecation message. Both UK2Node_ActorBoundE ...