Unreal Engine Issues
Unreal Engine Issues
Physics Mover: AI movement and collisions can cause sharp increase in velocity
UE - Gameplay - Player Movement - Mover - Aug 19, 2025A pawn using the physics mover and using AI movement can sometimes gain an ton of velocity quickly upon colliding with another physics object. It seems to fix it self and revert back to it's origina ...
Mover Spawning and teleport issues related to World::EncroachingBlockingGeometry and CharacterMesh collision
UE - Gameplay - Player Movement - Mover - Jul 30, 2025Setting a Skeletal meshes collision preset to CharacterMesh introduces problems with spawning and teleporting a pawn driven with Mover. ...
Mover standalone backend allows non-persistent sync structs to carry over between frames
UE - Gameplay - Player Movement - Mover - Jul 16, 2025Only certain sync state structs are intended to persist between frames. These are configured via MoverComponent's PersistentSyncStateDataTypes array. There appears to be a bug in the way the standa ...
Mover character flickers downward while crouched and moving every so often
UE - Gameplay - Player Movement - Mover - May 8, 2025Repro Rate 5/5 Packaged onWindows - 10 - Enterprise - L3864 Processor: AMD Ryzen Threadripper PRO 3975WX 32-Cores 3.50 GHz RAM: 128 GB GPU: NVIDIA GeForce RTX 3080 GPU Driver Version: 572.83 ...
Calling UMoverComponent::IsModifierActiveOrQueued() immediately after calling UMoverComponent::K2_QueueMovementModifier() will return false
UE - Gameplay - Player Movement - Mover - Mar 10, 2025Calling UMoverComponent::IsModifierActiveOrQueued() immediately after calling UMoverComponent::K2_QueueMovementModifier() will return false. Checking the code, IsModifierActiveOrQueue() calls FindMo ...
Mover ensure triggered when engine is running in the background
UE - Gameplay - Player Movement - Mover - Feb 11, 2025When the engine is running in the background, the following ensure may be hit in NetworkPredictionService_Interpolate.inl: npEnsure(ToFrame == INDEX_NONE || LocalFrame - ToFrame < Frames.Buffer.Cap ...
Mover flying mode rotation changes may be incorrect with roll involved
UE - Gameplay - Player Movement - Mover - Dec 11, 2024A licensee has reported that Mover's method of adding rotators together may produce different results than quaternion multiplication - for example in Flying mode when roll is involved. We will inve ...
MoverExamples: characters have 1-frame unnecessary extra input latency
UE - Gameplay - Player Movement - Mover - Mar 6, 2024Due to the way input is handled on the MoverExamplesCharacter, including AnimatedMannyPawn, we have a delay in the time between when an input event occurs and when it is ingested by the movement sim ...