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Every time I compile, random BP data gets reset

Since upgrading to 4.18, I have been experiencing the following issue: every time I compile my C++ code, random UPROPERTY(EditDefaultsOnly) variables in my BluePrint classes get reset to their default values. The BluePrints that get reset aren't necessarily based on classes I edited before compiling. This happens nearly every time I compile. I didn't experience this in 4.17, 4.16, or 4.15.

Is anyone else experiencing this?

Product Version: UE 4.18
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asked Nov 12 '17 at 06:18 AM in C++ Programming

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avatar image maskuda Aug 23 '18 at 04:51 PM

Yes, I am experiencing this in Unreal 4.20.1., too. Hopefully this will get fixed, soon!

avatar image circa94 Aug 28 '18 at 02:35 PM

Same for me in 4.19.2 Very annoying...

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This is a HotReload bug. It happens when you change the header file for an object and HotReload compile.

After you've recompiled with hot reload you can exit the editor and re-launch it. This will prevent HotReload from resetting your BP values.

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answered Aug 29 '18 at 07:02 PM

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