# Crash on loading my project in 4.6 **URL:** \ **Category:** Platform & Builds\ **Tags:** crash-on-loading, unreal-engine, crash, question\ **Created:** [November 19, 2014, 2:26am UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332 "2014-11-19T02:26:00Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [November 19, 2014, 2:26am UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/1 "2014-11-19T02:26:00Z")
I’m getting a crash when trying to load my project in 4.6. I had been working in 4.6 with my project last night, and it wasn’t crashing. Here is the callstack: MachineId:8AF7010447641D5068039D8136163ED0 EpicAccountId:eda781dc3758422eb683903704b14d6d Unknown exception - code 00000001 (first/second chance not available) Assertion failed: Field [File:D:\BuildFarm\buildmachine\_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Engine\Private\Collision\CollisionProfile.cpp] [Line: 363] KERNELBASE + 37901 bytes UE4Editor\_Core + 3092333 bytes UE4Editor\_Core + 1597672 bytes UE4Editor\_Core + 1479042 bytes UE4Editor\_Engine + 11681666 bytes UE4Editor\_Engine + 11629203 bytes UE4Editor\_Engine + 14155613 bytes UE4Editor\_Engine + 6250867 bytes UE4Editor\_CoreUObject + 394351 bytes UE4Editor\_CoreUObject + 394046 bytes UE4Editor\_CoreUObject + 394046 bytes UE4Editor\_CoreUObject + 394046 bytes UE4Editor\_CoreUObject + 1592305 bytes UE4Editor\_CoreUObject + 1478354 bytes UE4Editor!FEngineLoop::PreInit() + 9130 bytes [d:\buildfarm\buildmachine\_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:1281] UE4Editor!GuardedMain() + 236 bytes [d:\buildfarm\buildmachine\_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:110] UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine\_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine\_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202] UE4Editor!\_\_tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618] Anyone have any idea why this is happening? ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [November 19, 2014, 3:56pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/2 "2014-11-19T15:56:24Z")
Hi Breakobs, Could you also zip and post your LOG and DMP files? You can follow the directions in the link below to find them. > **[How do I report a bug?](https://forums.unrealengine.com/questions/12363/how-do-i-report-a-bug.html)** > > I have discovered an issue with the Editor or with another component of the Unreal Engine 4, and I would like to report it to Epic. How should I do this? Also, do you remember exactly what you were working on/changed before you project started crashing? ---
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [November 20, 2014, 2:09am UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/3 "2014-11-20T02:09:44Z")
Log and DMP files I was fixing bugs in my MyCharacter blueprint, as well as a ladder blueprint. Thanks for taking a look! ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [November 20, 2014, 4:04pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/4 "2014-11-20T16:04:46Z")
Could you also post a copy of your DefaultEngine.ini file? You can find it in your project folder here: YourProjectName\Config\DefaultEngine.ini ---
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [November 20, 2014, 5:25pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/5 "2014-11-20T17:25:49Z")
link text Sure, here you go. ---
**Author:** ![nikolobin](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@nikolobin](https://forums.unrealengine.com/u/nikolobin)\ **Post date:** [November 20, 2014, 7:52pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/6 "2014-11-20T19:52:08Z")
Hello, by any reason, did you modify this struct data? FCollisionResponseContainer. It’s not finding the channel correctly. –Lina, ---
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [November 21, 2014, 1:47am UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/7 "2014-11-21T01:47:13Z")
I didn’t modify any code, but I did create a new collision type through project settings, I believe, during my last work session. Does that answer your question? ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [November 21, 2014, 10:07pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/8 "2014-11-21T22:07:48Z")
Hi Breakobs, We haven’t been able to reproduce this in-house yet, would it be possible to get a copy of your project? Just upload it to dropbox, googledrive, etc. and send me a link directly by private message on the Forums. [https://forums.unrealengine.com/](https://forums.unrealengine.com/) ---
**Author:** ![Timbo](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Timbo](https://forums.unrealengine.com/u/Timbo)\ **Post date:** [November 22, 2014, 11:08pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/9 "2014-11-22T23:08:16Z")
Hi, I have the same problem in 4.6 preview. Everytime i create a new trace channel the editor crashs if i reopen the editor. Assertion failed: Field [File:D:\BuildFarm\buildmachine\_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Engine\Private\Collision\CollisionProfile.cpp] [Line: 363] After deleting the DefaultEngine.ini i can open the editor again. ---
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [November 23, 2014, 11:09pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/10 "2014-11-23T23:09:37Z")
This seems to be a great temporary solution. Thank you! ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [November 24, 2014, 2:52pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/11 "2014-11-24T14:52:20Z")
We’re glad you got back into your project. I just wanted to let you know that I downloaded your project and I could easily reproduce the crash. We are still going to be looking into the cause of the issue. We’ll post back as soon as we can. ---
**Author:** ![csharp1024](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@csharp1024](https://forums.unrealengine.com/u/csharp1024)\ **Post date:** [November 25, 2014, 10:27pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/12 "2014-11-25T22:27:48Z")
I had a similar issue when adding a collision channel. I looked at the generated ini file and saw the default channels were added to the ini even though they weren’t changed so I deleted them. I found that deleting the default channels from the defaultengine.ini fixed it (i.e. only have the new channels) ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [November 28, 2014, 8:24pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/13 "2014-11-28T20:24:14Z")
Hi Breakobs, I just wanted to let you know that I entered this as JIRA UE-5807 in our tracking software and our developers will be looking into it further. Cheers, TJ ---
**Author:** ![Kris](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/kris/32/758129_2.png) [@Kris](https://forums.unrealengine.com/u/Kris)\ **Post date:** [December 1, 2014, 12:14pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/14 "2014-12-01T12:14:22Z")
Editing collision by hand in .ini - no issue. Editing collision via editor - crash. Compared to previous ini file - only large difference was added UI and DefaultProjectile references. Removed the following line from DefaultEngine.ini: +DefaultChannelResponses=(Channel=ECC\_EngineTraceChannel1,Name=“DefaultProjectile”,DefaultResponse=ECR\_Block,bTraceType=False,bStaticObject=False) No longer crashes. So DefaultProjectile is the culprit, for me at least 🙂 ---
**Author:** ![Breakobs](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Breakobs](https://forums.unrealengine.com/u/Breakobs)\ **Post date:** [December 2, 2014, 2:42am UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/15 "2014-12-02T02:42:43Z")
Interesting, this also fixed my project as well. Thanks! ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [December 2, 2014, 4:12pm UTC](https://forums.unrealengine.com/t/crash-on-loading-my-project-in-4-6/299332/16 "2014-12-02T16:12:48Z")
We are glad you found a workaround. We’ve done some testing with your project and this issue has been fixed in our latest internal build. You should see it corrected in a future update. Cheers, TJ