Widget crashes editor after update to 4.13

Lord_Northern · September 9, 2016, 5:03pm

Hi.
I have a C++ project based off a third person template.
After the release of 4.13, I updated my engine (I compile my engine from Github), and a weird problem started.
Whenever I click on any UMG blueprint widget in the editor, it crashes the editor.
In fact, it happens even if I create an entirely new widget blueprint and try to open the blueprint.

This only occurs with this particular project, and only in version 4.13.
When I create a new project in 4.13, it doesn’t happen.
Or, if I try to run this project in version 4.12.5, this also doesn’t happen.

When my project crashes, Unreal Engine displays this error:

Exception thrown: read access
violation.

LegacyPin was nullptr.

The breakpoint seems to be in a file EdGraphNode.cpp, on line 363:

LegacyPin->Rename(nullptr, GetTransientPackage(), REN_ForceNoResetLoaders);

Any pointers as to what could be causing this?

anonymous_user_61b4a355 · September 9, 2016, 5:10pm

Hey Lord Northern,

The product version you put down is the UE Github Master Branch. Is that correct?

Lord_Northern · September 9, 2016, 5:12pm

Yes, this is correct

anonymous_user_61b4a355 · September 9, 2016, 5:16pm

The master branch is full of many issues as it is the daily commits from the developers. If you are developing any serious project it is highly recommended that you use the latest stable release, as of now, that is 4.13.0.

If you can recreate this issue on the stable release, please post again with any steps to reproduce.

Thanks.

Lord_Northern · September 9, 2016, 5:20pm

Will do. Thanks!

Lord_Northern · September 10, 2016, 9:40am

Hi.
So, I tried doing just that. I downloaded the stable released, compiled it, and the same problem occurs, as described above.

So, any ideas?

Thanks!

Lord_Northern · September 10, 2016, 10:16am

Another update!
Actually, the editor crashes with the same exact error when I try to open ANY blueprint.

anonymous_user_61b4a355 · September 12, 2016, 12:30pm

Can you give me steps to reproduce the issue so I can bug it on my end?

Here is a link to how to write up a bug report:

https://answers.unrealengine.com/questions/12363/how-do-i-report-a-bug.html

anonymous_user_61b4a355 · September 20, 2016, 5:35pm

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will follow up.