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4.19 Crashing on startup

Been using 4.19 for a while now and it has been fine. Recently it started crashing at "Initializing 9%" every time I open it. Nothing has changed since it was working as far as I can tell, the only thing I can think of was a windows update.

I have reinstalled 4.19 and restarted my PC multiple times but nothing seems to work.

Other engine versions work fine. It doesn't matter which project I use, even not choosing a project still crashes.

I can post crash logs, but I am not sure where they are located.

Product Version: UE 4.19
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asked Apr 20 '18 at 02:33 AM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Apr 25 '18 at 02:08 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



avatar image pcxx Apr 25 '18 at 05:42 PM

i have also the same problem

avatar image ReckDev Apr 25 '18 at 10:04 PM

What error are you getting? My log file says

 [2018.04.25-21.54.41:601][  0]LogFileManager: Error: Requested read of 1946183936 bytes when 38378801 bytes remain (file=C:/Users/DESKTOP/AppData/Local/UnrealEngine/4.19/DerivedDataCache/Boot.ddc, size=78063320)
 [2018.04.25-21.54.41:601][  0]LogWindows: Windows GetLastError: The operation completed successfully. (0)

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hello . Yesterday I can't launch ue4 419. But 415 416 and 418 were OK.

I have seen guys deleted "Intermediate" and "Saved" folders in a project.

But for me even i tested to launch direcly UE419, it crashed in a few second.

This morning, i had an idea : delete "Intermediate" and "Saved" folders in : "AppData \ Local \ UnrealEngine \ 4.19

Wonderful Now , I can launch UE419, it's OK


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answered Apr 26 '18 at 05:11 AM

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avatar image ReckDev Apr 26 '18 at 05:26 AM

That seemed to work. I had to delete everything in "AppData\Local\UnrealEngine\4.19" not just Intermediate and Saved though.


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