Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9

UE - Gameplay - Blueprint - Jul 17, 2015

Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9. In 4.8.2 binary, one input of a Select node will be disconnected on restarting the ...

Crash when Deleting Variable from Blueprint Struct

UE - Gameplay - May 23, 2019

The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...

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 reported when launching the binary Editor on a 2018 iMac Pro

UE - Platform - Apple - Oct 31, 2018

There has been a report of a consistent crash of the binary Editor on launch when it is being launched on an iMac Pro. Additional information from two separate reports about this crash seem to indi ...

Crash from Tmap removing a key then printing the remaining keys

UE - Gameplay - Blueprint - Apr 7, 2017

Crash from Tmap removing a key then printing the remaining keys. This has occurred in the third person template, but no further testing has been done for other templates. Regression: TMaps did not ...

Casting to a child with a self reference can cause a crash

UE - Gameplay - Blueprint - Aug 13, 2015

Casting to the child of a blueprint using the self reference (as the parent) throws a warning. Then placing a self reference anywhere in the event graph of the child by it's self will cause a crash ...

Crash in Hand IK Retargeting with two entries under "IKBones to Move"

UE - Anim - Rigging - Feb 28, 2017

Crash in Hand IK Retargeting with two entries under "IKBones to Move" Only seems to happen when you have a hand bone in the second slot of "IKBones to move" ...

Editor crash when adding elements to blueprint Set/Map

UE - Gameplay - Blueprint - Mar 22, 2017

Adding multiple element to TMap / TSet variable at once with a for loop causes the editor to lock up / crash (respectively). Regression: No - Map & Set variable types not available prior to 4.15 ...

10 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players

UE - Networking - May 19, 2015

10 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players. Less than 10 don't cause a crash. The user reporting this got a mor ...

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

UE - Gameplay - Blueprint - Jun 28, 2015

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...