Ensure occurs when force deleting a BP asset that is still referenced in memory

UE - Gameplay - Blueprint - Aug 2, 2016

Upon force deletion of a BP asset still referenced in memory an ensure is hit. ...

Ensure condition failed / Crash on BP Compile after adding variable

UE - Gameplay - Blueprint Compiler - Jan 26, 2018

Crash when compiling BP (containing user defined struct + object reference) after adding variable. ...

Crash force deleting blueprint being used as a Child Actor Component in an actor in the level

UE - Gameplay - Components - Mar 23, 2018

REGRESSION: Yes, the crash does not occur in 4.18. A crash occurs when the user force deletes an actor blueprint that is being used as a child actor component in another blueprint that's in the lev ...

Changing the codec of a Curve Compression Setting asset results in a crash

UE - Anim - Nov 18, 2021

When creating a Curve Compression Setting asset and changing the codec from Compressed Rich Curves to either Uniform Indexable or Uniformly Sampled the editor crashes. Tested in //UE4/Release-4.26 ...

Spawnable Level Instance via Sequencer in WP map

UE - World Creation - Worldbuilding Tools - Level Instances - Aug 21, 2023

ULevelInstanceSubsystem::OnActorDeleted: check(!IsEditingLevelInstanceDirty(LevelInstance) && !HasDirtyChildrenLevelInstances(LevelInstance)); ...

Crash deleting skeleton when it's being used in current level

OLD - Anim - Sep 6, 2016

Crash occurs when the user deletes a skeleton while it is being used in the current level. If the skeleton is not in the loaded level, the crash will not occur. ...

Subobject delimiter replacement in ResolveName can cause previously valid strings to exceed NAME_SIZE

UE - CoreTech - UObject - Nov 8, 2021

ResolveName will replace the subobject delimiter (colon) with two periods. This increases the length of the string, and can cause asserts due to the string exceeding NAME_SIZE even when the name was ...

Keying rotation with quaternion interpolation can give unexpected results

UE - Anim - Sequencer - Jul 16, 2020

Adding keys when quaternion interpolation is enabled can lead to unexpected results.  ...

Switch Skeletal Mesh node crashes the editor if the blueprint is compiled.

OLD - Anim - Feb 8, 2016

Switch Skeletal Mesh node crashes the editor if the blueprint is compiled after changing the mesh being called on node. Frequency: 3/3 CrashReporter: N/A NOTE: tied to [Link Removed], however on ...

Compiling blueprint with anim bp crashes editor in MathExpr exec

UE - Gameplay - Blueprint - Jan 30, 2016

Compiling a player character blueprint that is tied to an anim bp crashes the editor. Frequency: 2/2 Crashreporter: N/A ...