Sometimes when opening UEFN the engine crashes with no apparent reason.

General Issues and Bug Reporting
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1

Error displayed when crash occurs:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

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2

Hi Addison,

I think the best thing to do would be submitting a UEFN bug report .

The ā€˜no apparent reasonā€™ part is troubling. For best chances of getting a bug resolved youā€™d need to know how to consistently reproduce it.

Be sure to include info about your PC. (Operating System, RAM, etc)

Good luck!

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3

Hey, I was having the same issue. Did you happen to edit the Verse code for your map that crashes? I may have found a solution.

4

Solution: Go to your project view in UEFN then press browse which should be next to open. It should open the file explorer with all your UEFN projects. Choose the project you are having this issue with and then copy and paste into that same folder. Then in the copied file, go inside the folder, then the plugin folder, then the project folder, then content, and then find your custom game device in the files (you should be able to use the same file route in UEFN to locate it) and then delete it. Now open your new copy in UEFN project view and it should open without crashing. You can then create a new game device folder and copy and paste your old code. What seems to be the issue from what Iā€™ve seen is that the verse file in the crashing version cannot connect with the server (shows an error in VS Code bottom right).

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5

I have this same error code and I want to try this. I have UEFN to ā€œopen the latest project on launchā€ so every time I open UEFN I am not able to do anything because it opens the project that makes UEFN crash.

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6

same i think, i cant start uefn

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@Ix_exiled exception access violation - #4 by HalcyonKnight96