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4.13 crash on editor launch after conversion

Since 4.13's release I haven't been able to convert the project and then successfully run it. It will always stop at 93% on opening and at that point crash. Included is the set of files the crash handler output Thanks for any help on this

Product Version: UE 4.13
crashlog.zip (107.6 kB)
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asked Sep 05 '16 at 11:16 PM in Bug Reports

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The Scanner Darkly
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avatar image Sean L ♦♦ STAFF Sep 06 '16 at 04:37 PM


  • Could you please cause the crash to occur again and provide the Machine ID from the Crash Reporter window (assuming you are getting one).

  • Does this occur if you open a clean project in 4.13?

avatar image The Scanner Darkly Sep 06 '16 at 04:43 PM

Here's the machine ID: B963DD014E05B0B3323B80B507AD1DD8

I can open any clean project in 4.13, and a different project I have converted.

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3 answers: sort voted first


After investigating this issue, it appears to be a crash related to a blueprint cyclical dependency when creating a default subobject for instanced properties. Unfortunately, there is no known workaround at this time other than to try and break the cyclical dependency. The ticket number for future reference is UE-34568, and it is currently being investigated by our developers.

Also, we are currently unable to make the issue public as it contains potentially sensitive information.

Let me know if you have any further questions. In the meantime I'd recommend sticking with 4.12.5 if you aren't having any issues until this crash has been resolved.

Have a great day

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answered Sep 06 '16 at 07:35 PM

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Sean L ♦♦ STAFF
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That happening to me too, but only in one computer, I had anothers and those can create a new project, like a FirstPersonal Shooter Template, and when I update one project made in 4.12.5.

My Machine Id: A3DF5CD14391A51DFA7DB6A9075C4004.

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answered Oct 04 '16 at 11:50 AM

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avatar image Sean L ♦♦ STAFF Oct 04 '16 at 02:43 PM


This appears to be a slightly different crash, so if you could, please create a new Answerhub topic in the Bug Reports section.


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Hi There,

We have the same problem here, trying to convert our project from 4.12.5 to 4.13 and it crash also on play. In our case we need 4.13 to add Entitlement Check (for an oculus app).

If you have any recommandation it could help us!



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answered Oct 11 '16 at 10:43 PM

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avatar image Sean L ♦♦ STAFF Oct 12 '16 at 03:19 PM

Hey Ronan,

This issue has been reported as fixed for 4.14. However, if you are using source and would like to merge the fix into your engine, you can grab the commit here: https://github.com/EpicGames/UnrealEngine/commit/f64d552970a38b0ae638cb28ae9613ca01b9ae25

Have a great day

avatar image Roonan Oct 12 '16 at 03:22 PM


Thanks a lot for your help


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