Garbage collector error with blueprint hierarchies

We cannot provide a timeline for when a fix will be released at this time, but I will provide updates as they become available.

Hi, having the same issue here. I keep hitting this nasty issue and sending the crash reports to you.

MachineId:0179A83D46D3B8E1EE5E17A704ED858D
EpicAccountId:73e093a29bb940eb8f28f16ac7679b71

Is there a workaround for this as I am currently stuck…

Kind regards,
T

Hello,

There is currently no known workaround for this issue, and I have not been able to discover one in my tests.

Timothy, I am in the same boat. I am going back to 4.10.2 by manually recreating all the work done in 4.11. 4.10.2 doesn’t seem to have this issue (probably because its using old GC system).

I cannot run the game at all in the editor in 4.11.

After troubleshooting this error for weeks, something which seems to be consistently preventing the crash when modifying the hierarchy of actors is to switch the DefaultSceneRoot of the parent from Static to Movable.

For some projects that might not be a convenient solution, but can anyone with the error test to see if doing that prevents the crashing for them?

Edit: Actually this doesn’t seem to help consistently.

Edit 2: It seems any switching between Static/Movable in the parent fixes the crash on compile in the children.

@mbelarouci, did you end up resolving this? I gave up using 4.11.x, but now debating whether I should start a small project in it due to this bug.

I wouldn’t call it resolved. Still using 4.11.2 here. Every time I want to modify anything in the hierarchy which cases the crash on compile, I change the DefaultSceneRoot of the parent to Static (giving the below image) then back to Movable and it prevents the crashing.

Check this: Unreal Engine 4.12 Preview - Announcements - Unreal Engine Forums

Looks like they may have fixed it in 4.12 preview 3. I will test tonight, and probably stick with 4.10.4 until 4.13 is released, can’t afford to lose time like this.