Opening map file(s) crashes UE4
Opening map file(s) crashes UE4. I deleted the intermediate folder and data cache as I had seen it helped some people, but it didn't make a difference. Here is the Error:
Assertion failed: IsImport() [File:D:\Engine\Source\Runtime\CoreUObject\Public\UObject\Linker.h] [Line: 62]
I have no idea whats causing this.
asked Jan 04 '17 at 04:16 PM in Bug Reports
After looking into your crash, I'm seeing something that's slightly similar in callstack that has been resolved in 4.14. Would you mind opening a copy of your project in 4.14 to see if the same crash occurs?
If it is a certain map causing the issue, it might be worth rolling back to an older version of the file as well to see if there was a particular change that could have caused this crash to occur.
Also, I'd recommend checking your log in your project's Saved->Logs folder. It looks like there are some animation errors that could use resolution. Not saying that this is the cause of the crash, but it's worth a shot.
Let me know if any of that helps!
answered Jan 04 '17 at 06:39 PM
Sean L ♦♦ STAFF
Follow this question
Once you sign in you will be able to subscribe for any updates here