Unreal Engine Issues
Unreal Engine Issues
Scaling snap for selected object are reset to the origin of the scale pivot location
Tools - Apr 27, 2016When scaling multiple selected actors in the scene with snap enabled the actors will reposition to the pivot origin of the last selected actor in the group when going down to a value of 0 or a negat ...
NaN is handled differently when clamped on Windows and Android/iOS
UE - Platform - Mobile - Oct 18, 2017NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...
Crash after converting to 4.7.0 from 4.6.1
UE - Gameplay - Blueprint - Feb 26, 2015User is crashing when opening project after converting to 4.7. [Link Removed] [Link Removed] LOG IS ATTACHED 4.6 project with updated plugin: [Link Removed] ...
BP using nested child actor components in streaming level causes ensure condition failed
UE - Simulation - Physics - Solver - Jul 11, 2022This never happens on ue5.0.0 The problem appears to be caused by a deleted PhysicsProxy being registered with Solver. Since the solver accesses the deleted PhysicsProxy, it may crash. Checking a ...
Can perform infinite "double jumps" when JumpMaxHoldTime is greater than 0.
UE - Gameplay - Player Movement - Jun 3, 2016There's a bit of broken (or missing) logic in ACharacter that doesn't account for users having released the jump button. This is a well known issue, and there's even video's describing how users can ...
[CrashReport] Assertion failed: OLEReferenceCount == 0 in UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindows_Private()
UE - Editor - UI Systems - Slate - Aug 22, 2017This is a regular and longstanding crash in 4.17 that has occurred since at least 4.14. Users have not provided any descriptions of their actions when the crash occurred. There has been some previo ...
Differences in DistanceToNearestSurface and DistanceFieldGradient results between 4.27 and 5.0
UE - Graphics Features - Apr 27, 2022In the UE5 case, we end up seeing very harsh lines in both the gradient and the distance to nearest surface examples whereas the results in 4.27 appear smooth. It was also interesting to observe c ...
t.MaxFPS 0 locks FPS to 120 instead of unlocking it in Viewport
Tools - Nov 7, 2017When unlocking FPS in Viewport it defaults to 120 instead of potential max FPS. If you do this during Launch the 't.MaxFPS 0' or 't.MaxFPS -1' commands unlock the FPS to the max the GPU allows in th ...
ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor
UE - Framework - Blueprint Editor - Sep 6, 2025The underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph. ...
Crash after setting a key on a Rotation Track, then trying to right click the key with Transform track collapsed
UE - Anim - Sequencer - Aug 3, 2016Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 336 337 if (bHasRotationKeys) 338 { 339 TSharedRef<FStru ...