Unreal Engine Issues
Unreal Engine Issues
Network Prediction crash when smoothing service instance data is reallocated out from under FNetworkPredictionStateView
UE - Gameplay - Network Prediction - Apr 4, 2025Received a report from a licensee using Network Prediction Plugin and Mover. There is a strong likelihood of a crash occurring when using NPP's smoothing option and spawning new NPP-simulating ins ...
Values for InitialOnly replicated arrays can fail to be captured in replay when removed and re-added between checkpoints
UE - Networking - Oct 2, 2025When the first checkpoint is recorded, the correct array properties will be captured in the LifetimeChangelist. When these array items are later removed and another property on the actor is changed, ...
Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'
UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...
Cannot compile project with dedicated server in 4.8
UE - Networking - Jun 23, 2015If a project has built a dedicated server executable then it will fail when trying to convert the project from 4.7.6 to 4.8. EDIT: Following the steps on the wiki page for Dedicated Servers () in 4 ...
A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project
UE - Gameplay - Blueprint - Mar 1, 2015A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project. The library will save without error until the pro ...
Clear Timer node does not stop a looping timer
UE - Gameplay - Feb 16, 2015Setting a Clear Timer node does not stop the named function from firing. ...
Split Struct Pin on a Function output will return a compiler error
UE - Gameplay - Blueprint - Jan 13, 2015Split Struct Pin on a Function output will return a compiler error: Error Pin New Param 1 X named NewParam1_X doesn't match any parameters of function NewFunction_0 Error Pin New Param 1 Z name ...
Mesh blueprint has incorrect Scaling in viewport when added as a child blueprint component
UE - Gameplay - Sep 9, 2015If the user converts two static meshes in the level to blueprints, makes them movable, and then adds one to the other as a child blueprint component then the child component will scale incorrectly i ...
Cannot change color and opacity via animation key frames for text blocks in UMG
Tools - Nov 12, 2014Changing the color and/or opacity setting for a text block does not register with the autokey when animating in UMG. Because of this users are unable change these settings dynamically via the animat ...
Function call inputs do not revert to their Default Values if a variable node is connected and then disconnected
UE - Gameplay - Blueprint - Aug 3, 2015Function call inputs do not revert to their Default Values if a variable node is connected and then disconnected. Refreshing the call node does not reset the inputs to their defaults. Reproduced in ...