Can't change level with Open Level

I’m trying to change current level I’m working on with File Open Level but editor keeps crashing with this error:

MachineId:6332131F418FB82EDC7501B8099D69B2
EpicAccountId:a75b12ab036240229fca5e71116755d5

Unknown exception - code 00000001 (first/second chance not available)

Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Editor\UnrealEd\Private\EditorServer.cpp] [Line: 1721]
//Game//Maps//World.World still around trying to load …//…//…//…//…//…//Users//GMC//Documents//Unreal Projects//

KERNELBASE + 24684 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597391 bytes
UE4Editor_UnrealEd + 2605669 bytes
UE4Editor_UnrealEd + 2766243 bytes
UE4Editor_UnrealEd + 2700861 bytes
UE4Editor_UnrealEd + 2612749 bytes
UE4Editor_UnrealEd + 6316416 bytes
UE4Editor_UnrealEd + 3168772 bytes
UE4Editor_UnrealEd + 3135860 bytes
UE4Editor_UnrealEd + 3085277 bytes
UE4Editor_UnrealEd + 3180546 bytes
UE4Editor_UnrealEd + 3085346 bytes
UE4Editor_ContentBrowser + 977638 bytes
UE4Editor_ContentBrowser + 1840870 bytes
UE4Editor_ContentBrowser + 1331143 bytes
UE4Editor_ContentBrowser + 1378039 bytes
UE4Editor_ContentBrowser + 1613687 bytes
UE4Editor_ContentBrowser + 1332663 bytes
UE4Editor_ContentBrowser + 1379239 bytes
UE4Editor_ContentBrowser + 1891974 bytes
UE4Editor_ContentBrowser + 1336641 bytes
UE4Editor_ContentBrowser + 1382442 bytes
UE4Editor_ContentBrowser + 1371670 bytes
UE4Editor_ContentBrowser + 1977407 bytes
UE4Editor_ContentBrowser + 1892559 bytes
UE4Editor_Slate + 428894 bytes
UE4Editor_Slate + 157325 bytes
UE4Editor_Slate + 829529 bytes
UE4Editor_Slate + 768779 bytes
UE4Editor_Core + 2484316 bytes
UE4Editor_Core + 2400763 bytes
UE4Editor_Core + 2489275 bytes
UE4Editor_Core + 2387186 bytes
user32 + 9268 bytes
user32 + 8855 bytes
UE4Editor_Core + 2490486 bytes
UE4Editor!FEngineLoop::Tick() + 3434 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2193]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
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]

Here are my .log files: link text

Hey gmc,

Is it only one map that won’t open, or any map? It looks like there may be a problem with Menu.umap… is that what you’re trying to open when this crash occurs? Does this happen in a new project, or only your existing project?

Its any map I try to open from my world map, I had editor open map by default, I changed it to my Menu map and restarted editor. I was then able to change map to any other map and change back, but if I changed it to World map then tried to change from there, editor crashes.

Okay, I may need to take a look at your project. I suspect your other issue ( Can't run game in Standalone Game - Getting Started & Setup - Epic Developer Community Forums ) is related. Would you be willing to upload it somewhere, like Dropbox, and send me a download link? You can send a link via PM on forums, if you prefer.

Sure thing! It may take a while though, folder is getting big! (Approx 4h)
And this may be related to my other question, but this started happening after that one!

One thing, you don’t have to do this, but since 4.6.1 some of my destructibles have not been working correctly in my Intro level, if you could look at them, that would be great, but if you don’t, that’s fine too, it’s not a major bug or anything, just looks weird.

Update: I tried playing my game using Launch button (next to Play In View Port), but Load Level function does not work correctly when using this play mode, it just loads my Menu level instead of one it’s told too and this happened with both my Menu map and Intro map.

I’ve forwarded your logs to one of our developers to see if he can help. I’ll let you know when I get somewhere with them.

Cool, thanks! I hope everything uploaded to Dropbox that you needed! If, you do need anything else from me, feel free to ask!

Here is way I was able to fix this:link

Hey gmc,

One of our developers looked into your project and narrowed cause of problem down to Speed timeline in Village Level Blueprint. We had a bug in our system for a similar crash (UE-8047), but we didn’t have any logs or reproduction steps for it. Your reports helped us narrow it down! We believe this is possibly related to a duplicated timeline… is it possible this Timeline was copied from another Blueprint and pasted into this one?

Unfortunately, deleting Timeline in question in 4.6.1 and 4.7 Preview 4 crashes editor, so as with your other bug, I would recommend sticking with 4.6.1 until 4.7 Preview 5 comes out and then testing on a copy of project then.

Thanks for your report!

You know, I did copy that Timeline from another BP! I guess I will just have to stick with 4.6 then until next Preview comes out!

Well, it seems whatever was wrong with it is now fixed in 4.7, although it is still acting funny (multiple Destructables breaking at once, but this may just be User Error). Before Destructables would not crumble, only every other one if they were put side by side (touching).

Please let us know if you still have these problems with next Preview. I’m not 100% sure this fix will be in next one, but I think it will. It will almost definitely be in 4.7 Official.

For your destructible issue, please open up a new post. I can look into it and get someone familiar with destructibles on it if necessary.

Thanks for your patience!