I’m getting random crashes pretty often (sometimes when closing the editor and sometimes while compiling Blueprints) in 4.18 and the callstack points to MallocTBB.cpp file (line 130).
That said - try taking this change. It fixes an unrelated bug, but it is a memory corruption, so who knows… (For clarity - commit description calls out Linux, but memory corruption was happening everywhere - on Windows too).
If you do encounter this crash in the latest branch, please also include any setup / reproduction steps that lead to the crash to help us test the behavior locally.
Definitely ! I just finished downloading promoted branch and applied RCL’s fix. Recompiling the Engine now. Will comment if this occurs again.
After posting this thread the Editor was crashing more often and even though it was completely random, one common thing I noticed was I had Anim Blueprint open most of the time.
For instance, here are the times when Editor crashed because of this error:
Dragging a pin from any variable in Anim Blueprint. Example: Float variable.
If you’re getting a crash, can you provide detailed information including the callstack from the crash and any repro steps? It would be best to do so in a new post so that the crash can be investigated without getting lost in this post.
Hello Unreal Engine Devs, I am having the same issue with your newest update v4.18.2, having recently installed the engine, i have not modded the engine at all. I was opening up my pawns scripts and no matter what i do, i.e. Attach a function to a controller, or get a vector for a respawn, the game will crash instantly and slowly rack up my ram and disk untill everything crashes and im forced to restart my computer. I dont want to roll back because 4.18 has been a nightmare for me trying to use everything for vr, ive had to restart my entire game because it would not convert over from 4.17.2, and in doing so i crash everytime i pick up a few cubes and move around.