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Crash in FTickFunction::QueueTickFunction

I'm seeing a semi-random crash in my game. It happens when running the Development Editor version; I will try to repro it in Debug Editor soon. Most recently, it happened when I attempted to open the console menu by pressing tilde ~ while running in a separate window.

I downloaded the source code to try to get a better handle on it. Here's what I'm seeing. It looks like it's crashing while attempting to set CompletionHandle to NULL.

Here's a screenshot of what I'm seeing in the debugger when this occurs.

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ftickfunction.png (141.1 kB)
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asked Mar 27 '14 at 07:44 PM in Bug Reports

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2 answers: sort voted first

I'm still testing - but it appears to be related to the MovementComponent of a character. If I remove it (by calling MovementComponent->DestroyComponent()) then the game will crash when that actor is destroyed.

If I don't remove that component then the 100% reproducible crash doesn't appear to happen anymore.

The reason we removed it in the first place was that we have a lot of characters that have physics turned off and yet profiling showed they were still performing physics checks. Removing that component in Beta 6 gave us more than a 10fps performance boost!

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answered Mar 27 '14 at 10:49 PM

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Have you been able to reproduce this in a clean project?

Thank you!


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answered Mar 27 '14 at 10:09 PM

avatar image MSE_Taliesin Mar 27 '14 at 10:15 PM

No, we haven't. But my colleague (Neil Griffiths) and I are both getting this on a regular basis. Neil has reproduced it in Debug and will post more info.

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