The hand-shim VFX containers only had no-arg Create(); the engine calls them with collection/params/loading-main args (510 CS1501). Add the real decomp Create overloads to SequentialVfxPlayer/ParallelVfxPlayer/VfxWithLoading/VfxWithLoadingSequential. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>