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Tech Note: Crash on startup of cooked game due to failure to load animation compression settings

Feb 13, 2021.Knowledge

Description:
Animation compression settings can fail to load when Event Driven Loader is disabled, leading to a crash on startup of a cooked game. The crash is proceeded by a failure of the following checked call in AnimationCompressionTypes.cpp:

checkf(!Obj->HasAnyFlags(RF_NeedLoad), TEXT(“Failed to load %s in %s”), *Obj->GetFullName(), *Source->GetFullName());

Potential Impact:
Moderate: This issue will only effect projects which are using the non-Event Driven Loader codepath, which is now deprecated, for loading assets.

Solution:
As the non-Event Driven Loader codepath has now been deprecated, any project should ensure that the ‘Use Event Driven Loader’ option is enabled in the Project Settings.

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