I get two permanent ‘Ensure condition failed’ errors on project package:
1.MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Ensure condition failed: this->IsBound() [File:g:\program files\epic games\4.12\engine\source\runtime\core\public\delegates\DelegateSignatureImpl_Variadics.inl] [Line: 1042]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Unable to bind delegate to ‘ButtonNext_OnEndOverlap’ (function might not be marked as a UFUNCTION)
Note: It’s not just ButtonNext_OnEndOverlap, there are error messages for all Hit and Overlap delegates.
2.MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Ensure condition failed: NewTransform.IsValid() [File:D:\Build++UE4+Release-4.12+Compile\Sync\Engine\Source\Runtime\Engine\Private\Components\SceneComponent.cpp] [Line: 415]
It started few days ago after update to 4.12, but first packages finished successfully. Then i tried to make a shipping package instead development - it was successfull too. But all later builds without noticable source changes failed. The problem can be related to this (https://answers.unrealengine.com/questions/427611/unable-to-bind-delegate-1.html), but i don’t use preprocessor macros. I also migrated all my content to entirely new 4.12 project (for another reasons), but still can’t package it. All builds in C++ in non-editor Development and Shipping configs are successful, and the project works without errors in editor and via Project Launcher.